Peter Tanella Chairs the Firm’s National Veterinary Law Group and Corporate Law Practice Groups and is a member of the Firm’s Executive Committee. He is a nationally experienced business lawyer and trusted advisor to his clients. Peter’s practice focuses heavily on representing veterinarians in all phases of their careers including, but not limited to, acquisitions and sales of practices, private equity roll-ups, structuring management services organizations, associate buy-ins and succession planning. Having worked with many veterinary practice owners and associate veterinarians across the country throughout his career, Peter brings a depth of legal and business knowledge to his clients, coupling experience with practical and creative advice that provides clients with the ability to effectively achieve their goals while also respecting the client’s deadlines and budget. Peter has extensive experience in a diverse range of practice areas, including mergers and acquisitions, corporate governance, labor and employment law, commercial real estate, and commercial lending.

Peter regularly serves as outside general counsel to his clients to efficiently find creative solutions in order to manage a practice owner’s business and professional assets, while also acting as a key resource for facilitating transactions. He is particularly skilled in representing veterinarians in all facets of the business life cycle from corporate formation and structure issues, capital raising, structuring and negotiating mergers and acquisitions, private equity roll-ups, affiliating veterinary practices and other non-traditional joint operating structures, and negotiating and drafting associate and practice manager employment agreements. He also has extensive experience advising clients on the complexities of co-owner dispute resolution and business separation.

Peter prides himself on adding value to his clients’ businesses by making mutually rewarding introductions. As a result, he regularly connects his clients to other professional service providers and investors. He works under the premise that connecting quality people with one another enhances the likelihood of success for all involved.

  • Mayor/Councilman, Township of Cedar Grove, 2004-Present
  • Metropolitan YMCA of the Oranges, Member of the Board of Directors
  • Essex County Bar Association
  • New Jersey State Bar Association

  • State of New Jersey, 2000
  • U.S. District Court, District of New Jersey, 2000

  • Quinnipiac University School of Law, J.D.
  • Montclair State University, B.A.

Deal Alert: Our National Veterinary Law Group Worked with a Client on the Purchase of a Veterinary Practice Under Extremely Short Timeframe to Avoid Increased Interest Rates

October 31, 2022

In October 2022, members of our National Veterinary Law Group including Peter Tanella, Esq., Melody M. Lins, Esq., Eileen Funnell, Esq., and Alan Freeman, Esq. worked with a client on the purchase of a veterinary practice under an extremely short timeframe in order to avoid increased interest rates. In a span of only 18 days from the execution […]

Deal Alert: Mandelbaum Barrett Real Estate partner Joshua Gorsky, Esq. recently represented a Buyer in the purchase of a commercial building in Summit, NJ.

June 30, 2022

The contract of sale was first signed in 2020 and was made contingent on the Buyer obtaining approval from the Zoning Board of Adjustment to convert the existing restaurant on site into a state-of-the-art veterinary facility. Michael J. Lipari, Esq. of the firm’s Land Use and Zoning group obtained a Use Variance, a Bulk Variance and […]

Deal Alert: Members of our National Veterinary Law Group worked with a client on the sale of his veterinary practice under an extremely short timeframe. 

March 14, 2022

In a span of only 18 days, our team was engaged to negotiate and close the deal. Our client sold his South Carolina veterinary practice, which operated in two locations, to a corporate consolidator for a total enterprise value equal to more than $5,000,000. Once engaged, our team immediately conducted extensive financial and legal diligence and negotiated […]

Deal Alert: Attorneys who are part of our National Veterinary Law Group at Mandelbaum Barrett recently represented a start-up veterinary hospital client in the acquisition and financing of a building in Monmouth County.

February 24, 2022

We are excited for the client’s next steps which include renovating the interior of the space to become a state-of-the-art facility.

Members Dan Barkin and Peter Tanella Close Investment In Medical Marijuana Facility

May 2, 2016

Dan Barkin and Peter Tanella recently closed an innovative seven figure investment in a medical marijuana production facility. This transaction involved a secured convertible debt provided by a Wall Street investor to an early stage venture. Dan and Peter employed creative structuring techniques to navigate

Veterinary Law Newsletter: Volume 23

March 23, 2023

Our National Veterinary Law Group at Mandelbaum Barrett is excited to release our latest newsletter. In addition to important industry hot topics and recent events, we are excited to spotlight Symbios Animal Health, Patterson Veterinary University and BlackDVM Network in this issue. Read the newsletter here.

Equity Incentives for Practice Owners

March 17, 2023

Over the course of the last decade, veterinary practices have increasingly been acquired by corporate buyers. This new trend means more and more veterinarians own equity (stock) in a large company, instead of full ownership in their own practice (or ownership split among two or three partners). But the concept of holding a stake in […]

National Veterinary Law Group Newsletter: Volume 22

January 3, 2023

As we get ready to close out 2022 and start 2023, we are pleased to bring you our National Veterinary Law Group at Mandelbaum Barrett‘s End of Year Newsletter. In this issue, Chair Peter Tanella, Esq. and the Veterinary Law Team bring you articles on hot topics such as “What Does it Mean to Hire the Right […]

Selling your Veterinary Practice: Improving your Chances for a Successful Closing

December 20, 2022

Veterinary business is big business. In 2019, the U.S. veterinary business was estimated at $51.3 billion. By 2021, the second year of the pandemic, the market had grown to $58.3 billion. Increased pet ownership and more frequent visits to veterinarians were two major reasons for the growth. At the same time, the corporatization of veterinary […]

What Does It Mean to Hire the Right Veterinary Lawyer?

September 26, 2022

The old saying “a rose is a rose is a rose” does not apply to attorneys. And for good reason! Although an attorney should have a general working knowledge of several areas of law, no one legal practitioner can or should claim to be experienced in all industries. This is one of the many reasons […]

The First-Time Practice Owner

March 24, 2022

Today’s Veterinary Business October 2020 By Peter H. Tanella Starting a veterinary practice is an exciting endeavor for any clinician, but trials and tribulations are a normal part of the process. I’ve found that the following seven steps will help establish the foundation for a successful start-up. 1. Develop an Airtight Business Plan Creating a […]

9 Items to Consider When Contemplating the Sale of Your Veterinary Practice

October 27, 2021

For many veterinary practice owners, aspirations of selling your practice may be tempered by the unknowns of the acquisition process. Even when the circumstances of a potential sale are ideal, unfamiliarity with the market and sale procedures can lead to hesitancy. While timidity toward the unknown is certainly justifiable, owners should not let it stop them from becoming a participant in the rapidly growing market for veterinary practice acquisitions. While each veterinary practice sale is unique in its own right, there are also a number of procedural commonalities that appear in nearly every deal.

Potential Capital Gains Rate Increase May Supercharge the Veterinary M&A Market

August 17, 2021

At certain points in time, there have been unique windows of opportunity, where market factors have driven veterinary practice valuations upward. For example, in 2012, America approached a fiscal cliff, due in large part to George W. Bush’s expiring tax cuts. If Congress and President Obama failed to act, which it appeared they might, it […]

Employee Handbooks for Veterinary Practices

August 4, 2021

A handbook is an important resource that every veterinary practice should have, whether it has five, 25, or 50 employees. That's because the key to healthy relationships between employers and employees is clear and consistent communication.

Mut Do's If Thinking of Selling

June 22, 2021

The purchase or sale of a veterinary practice can be an overwhelming journey. Even seasoned clinicians will encounter numerous potholes — emotional, financial and legal issues — on the road to closing what in many cases can be a multimillion-dollar transaction. Here are eight gaffes that frequently occur in the veterinary world and suggestions for […]

When Wil I Get My COVID-19 Vaccination?

February 24, 2021

The FDA began issuing COVID-19 vaccines in December. With distribution determined by “phase” classifications, many members of the veterinary industry have been left wondering when their vaccines will be made available. Vaccination distribution plans have been primarily left at the discretion of state governments, thus resulting in some differences from one state to the next. […]

Fair And Square

February 2, 2021

Today’s Veterinary Business February 2021 By Peter H. Tanella Federal antitrust laws are discussed when transactions between corporate titans are in the news, such as the merger of T-Mobile and Sprint. Such laws, however, are the foundation of modern American capitalism and a subject that veterinary businesses need to understand, at least in principle. In […]

The Last Word

December 5, 2020

Today’s Veterinary Business December 2020 By Peter H. Tanella Many practice owners require associate veterinarians to sign employment agreements that include arbitration provisions. One reason is that arbitration is generally touted as a good way for an employer to avoid the financial risk associated with taking litigation to a jury trial. That said, arbitration is […]

Selling Your Practice In A COVID Market

August 3, 2020

Today’s Veterinary Business August 2020 By Peter H. Tanella So, you’ve decided to sell your veterinary practice after a lifetime of hard work, but the COVID-19 pandemic has fundamentally impacted the process. From new contractual provisions and buyer financing delays to due diligence issues, you’ve encountered numerous roadblocks. However, with better planning and the right […]

Succeed With A Succession Plan

June 3, 2020

Today’s Veterinary Business June 2020 By Peter H. Tanella One of the most challenging exercises that veterinarians go through is planning for what will happen to their business if they die unexpectedly or become disabled. Emotional considerations and the stress of detailing a future business transaction can cloud the process. Unfortunately, COVID-19 highlighted the importance […]

Beware The Evergreen Clause

April 2, 2020

Today’s Veterinary Business April 2020 By Peter H. Tanella Veterinarians will enter into dozens of contractual relationships throughout their professional careers. They can reasonably expect to sign employment agreements, purchase orders, client payment and IT service contracts, property and equipment leases, real estate deals, and so on. The paperwork can vary in sophistication and complexity, […]

What's An Employer To Do During COVID-19?

March 15, 2020

Today’s Veterinary Business March 2020 By Peter H. Tanella Today’s Veterinary Business “Legal Lingo” columnist Peter H. Tanella, Esq., and his law firm, Mandelbaum Barrett, are working with veterinary practice owners and managers faced with employment issues during the COVID-19 pandemic. Tanella chairs the firm’s National Veterinary Law Center. What follows is a series of […]

At Your Service

February 1, 2020

Veterinarians, investors and executives who want to form a management services organization (MSO) often do so without fully exploring the reasons. One revolutionary change in the veterinary industry over the last decade was heightened interest in MSOs, which resulted in a lot of newer market entrants, including, but not limited to, private equity.

Close The Deal

December 3, 2019

Today’s Veterinary Business December 2019 By Peter H. Tanella Managing your veterinary practice can be overwhelming, but protecting your business is of the utmost importance. That’s why having a solid employment agreement with an associate veterinarian — one delineating pay and responsibilities — is critical. For an employment agreement to be enforceable, what need to […]

A Handshake Isn't Enough

August 2, 2019

Today’s Veterinary Business August 2019 By Peter H. Tanella After extensive deliberations, you take a leap of faith and decide to dive into a veterinary practice partnership. While excitement compels you to rush into the venture, taking a step back to evaluate the implications and properly structure the business arrangement will greatly benefit you and […]

Peter Tanella, Esq. to Co-Present a Peer to Peer Presentation with Chris Rocchio, DVM of Monarch Business Consulting at Fetch DVM360 Conference

March 21, 2023

Selling or purchasing a veterinary practice can be a daunting experience for a veterinarian. It is also one of the most important decisions in our professional lives. Unfortunately, veterinarians have little experience or training in this area. There are a lot of hurdles and pit falls along the way and some of them can be […]

Peter Tanella authors article for Today’s Veterinary Business titled “PPP Loans and Your Practice”

February 1, 2023

“PPP loans and other relief funds were critical in allowing veterinary practices to stay open and treat patients during difficult times. While many businesses are eager to put the pandemic in the past, PPP loans cannot be overlooked when a practice changes ownership.” “PPP Loans and Your Practice” are the focus of Peter Tanella, Esq.‘s Legal […]

Peter Tanella and Dennis Alessi to Present at WVC 2023

January 31, 2023

The National Veterinary Law Group at Mandelbaum Barrett Chair Peter Tanella, Esq. and Partner Dennis J. Alessi, Esq. will be giving 2 presentations at the upcoming WVC Conference in Las Vegas on February 21st. Their first session will be “Everything You Wanted to Know About MSOs: And Why Veterinarians Should Establish Their Own” followed by “Non-Traditional Methods for Granting […]

The National Veterinary Law Group at Mandelbaum Barrett to Exhibit at Upcoming VMX Meeting

January 4, 2023

Our National Veterinary Law Group is gearing up for their first industry show of 2023 and looking forward to connecting with clients, colleagues, and friends. Practice Chair Peter Tanella, Esq. and associates Justin Wade, Esq. and Eileen Funnell, Esq. will be exhibiting at the VMX Meeting in Orlando, Florida from January 15th to 18th. Make […]

Peter Tanella, Esq. authors article for Today’s Veterinary Business titled “Leaving So Soon?”

December 5, 2022

“A veterinarian’s sale of a practice is a life-changing and multifaceted event. More often than not, the seller is overwhelmed by the numerous considerations suddenly in play.”  In the Today’s Veterinary Business December/January issue, Peter Tanella, Esq. uses a real-world example to discuss veterinary practice sales in his “Legal Lingo” column. “In addition to continuing […]

Peter Tanella, Esq. to present to the Michigan State University Veterinary Business Management Association

November 2, 2022

Peter Tanella, Esq., Chair of the National Veterinary Law Group at Mandelbaum Barrett will be presenting to the Michigan State University Chapter of the Veterinary Business Management Association on Wednesday, November 16th, 2022. He will be speaking on the topics of “Employment, Start-Up & Buying a Practice Contract Red Flags/Pitfalls.”

The National Veterinary Law Group at Mandelbaum Barrett to Exhibit at the 2022 NY Vet Show

October 26, 2022

Coming up next week on November 3rd and 4th! The National Veterinary Law Group at Mandelbaum Barrett will be exhibiting at the US Vet Shows‘ New York Vet Show at the Javits Center. They are looking forward to connecting with industry friends and colleagues. Make sure to stop by and say hello at Booth #1313.

Peter Tanella, Esq. authors article for Today’s Veterinary Business titled “How to Forge a Healthy Workplace Culture”

October 3, 2022

“The demand for veterinary care remains strong, presenting practice owners with challenges such as short staffing, larger caseloads, reduced efficiency, and increased employee burnout and turnover. As a result, I recommend that practices focus on creating a strong staff family to ensure the hospital’s success. After all, happy employees leave favorable impressions on clients and […]

Peter Tanella will be exhibiting at the New York State Veterinary Conference at the Cornell University College of Veterinary Medicine

September 7, 2022

Peter Tanella, Esq., Chair of the National Veterinary Law Group at Mandelbaum Barrett will be exhibiting at the New York State Veterinary Conference at the Cornell University College of Veterinary Medicine from October 7th to 9th. At the conference, Mandelbaum Barrett will be co-hosting a New York State Veterinary Medical Society dinner and presentation with Monarch Business Consulting on Friday, October 7th at […]

Peter Tanella, Esq. authors article for Today’s Veterinary Business titled “How Groomer Clients Become Adversaries”

August 2, 2022

“Pets can be injured — or worse — through sheer negligence or unforeseen events. Learn to reduce the risk and your legal exposure.” Pet grooming in the United States is an $8 billion-a-year industry with untapped growth potential, especially in the veterinary profession, but it’s also ripe for mishaps and liability claims. Mandelbaum Barrett Veterinary Law […]

Peter Tanella, Esq. authors article in Today’s Veterinary Business titled “When an Infection Triggers a Lawsuit”

June 17, 2022

Peter Tanella, Esq., Chair of the National Veterinary Law Group at Mandelbaum Barrett has authored an article in the June/July issue of Today’s Veterinary Business titled “When an Infection Triggers a Lawsuit.” The article is featured in Mr. Tanella’s regular column called “Legal Lingo” and reviews a New York court case that serves as a cautionary tale […]

Peter Tanella is Guest Speaker on Harbor Business Experience Podcast

March 3, 2022

Peter Tanella, Esq., Chair of the National Veterinary Law Group at Mandelbaum Barrett is thrilled to be this week's guest speaker on the Harbor Business Experience Podcast with Robert J. Trimble DVM. If you're hoping to learn and grow in the world of practice ownership, don't forget to join the Harbor Business Experience! Once a month, Rob Trimble, DVM and the team at will be taking a deep dive into the things you need to know to find success in the business side of the veterinary industry.

Peter Tanella authors article for Today's Veterinary Business titled "Stay Away, Please"

February 16, 2022

"Common in veterinary practice transactions, restrictive covenants are designed to prevent the seller from soliciting clients and competing with the buyer after the sale. Through such restrictions, buyers aim to protect themselves and ensure that the acquired business does not lose value due to the seller's re-entering the market. To fulfill those objectives, a purchase agreement's restrictive covenants should be negotiated, clearly stated, endure for a reasonable period (for example, two to five years) and be practical in geographic scope." Chair of the National Veterinary Law Group at Mandelbaum Barrett, Peter Tanella, Esq. authors a regular column in Today's Veterinary Business called "Legal Lingo." In the current February/March 2022 issue, his article titled "Stay Away, Please" discusses how restrictive covenants serve a critical purpose in a newly purchased clinic's continued success.

National Veterinary Law Group attorneys to attend Western Veterinary Conference

February 16, 2022

Peter Tanella, Esq., Chair of the National Veterinary Law Group at Mandelbaum Barrett, and attorneys Melody Lins, Esq. and Justin Wade, Esq. will be attending the Western Veterinary Conference (WVC) in Las Vegas from March 6th to 9th, 2022. They are looking forward to connecting with industry friends and colleagues and will be at Booth 1351.

Congratulations to Peter Tanella, Esq. for Being Appointed to the Board of NYSAVE.

February 14, 2022

Peter is a strong animal advocate and is committed to helping the pets and the people in his community by volunteering for this great cause. NYSAVE is a non-profit organization which provides emergency funding for the veterinary care of sick or injured companion animals owned by low-income NYC residents who are unable to pay the […]

Peter Tanella authors article for Today's Veterinary Business titled "When Clients Sue"

February 8, 2022

"Empathy and communication go a long way when heading off litigation. Unfortunately, a New Jersey case shows what can happen in their absence." Peter Tanella, Esq., Chair of the National Veterinary Law Group at Mandelbaum Barrett is the also the "Legal Lingo" columnist for Today's Veterinary Business. In the current issue, Peter writes an article titled "When Clients Sue" where he analyzes a recent appellate case followed up with important takeaways for all Veterinarians.

Winter 2021 Veterinary Newsletter

February 15, 2021

Spring 2020 Veterinary Newsletter

May 29, 2020

Peter Tanella Sworn in to Serve His 5th Term on the Council of Cedar Grove

July 1, 2019

Congratulations to Partner Peter Tanella who was recently sworn in to serve his 5th term on the Council of Cedar Grove. Peter has served Cedar Grove since first being elected in November of 2004, including 4 terms as Mayor. We are proud of your dedication and 15 years of service.

Peter Tanella Received The Metropolitan YMCA of the Orange's Kenneth A. DeGhetto Champions Cup

September 20, 2018

Member and Chair of Mandelbaum Barrett's Corporate Law Practice Group, Peter Tanella, received the Metropolitan YMCA of the Orange's Kenneth A. DeGhetto Champions Cup for his support and fundraising efforts for the "Kids Care Club Golf Tournament" and his commitment to raising awareness of the YMCA. The award is presented annually at the Kids Care Club Golf Outing. Peter raised 12k for the event and is an active member of the Metropolitan YMCA of the Oranges Board of Directors, a member of the Board Governance Committee and a member of the Association Golf Committee. Congratulations Peter and thank you for all you do for our community!

Peter Tanella to Speak at Bank of America Practice Solutions' "Veterinary Office Construction 101" Event

September 14, 2018

Peter Tanella, Chair of the Firm's Strategic Veterinary Counsel and Business Law Practice Groups is speaking at Bank of America Practice Solutions' "Veterinary Office Construction 101" event on October 24th in New Brunswick. This valuable seminar is for veterinarians looking to build, construct, renovate or relocate. Register by contacting or calling 614.753.1603. Click here to learn more.

Mandelbaum Barrett's Strategic Veterinary Group Releases First Issue of VETNEWS

August 14, 2018

Mandelbaum Barrett's Strategic Veterinary Counsel Group, led by Peter Tanella, Esq., is excited to share the 1st issue of its new publication VETNEWS. As always, if we can be of assistance to your practice, please don't hesitate to contact us. Peter can be reached at