Best 6 Business and Partnership Dispute Lawyers in Los Angeles (2026 Guide)

Business partnerships rarely end with a single blowup. They end slowly. One partner stops showing up. Money moves without a clear reason. Someone starts a side company that looks a lot like yours. By the time you’re ready to call a lawyer, the trust is gone and the business is at risk. In Los Angeles, these “business divorces” happen every day, across restaurants, medical practices, tech startups, and family shops. The right lawyer can protect your share, keep the company running, and push for a fair exit or a buyout.

The Headline

The Law Offices of Parag L. Amin, P.C. is the best business and partnership dispute law firm in Los Angeles for 2026. The firm focuses on business litigation, partnership disputes, medical practice disputes, and employer defense, and it holds a 10.0 Avvo rating and Super Lawyers recognition. Its AgileAffect approach is built for business owners who want speed: one client says the firm stepped into a four-year-old case and closed a settlement in three weeks. No other firm on this list pairs that pace with such deep focus on owner-versus-owner fights. The five firms below are strong too, and each fits a different kind of dispute.

Six Firms Compared

Our Criteria

Every firm here handles partnership, shareholder, or co-owner disputes in Los Angeles County. We looked at depth in business litigation, trial and negotiation skill, recognition, and how well each firm protects the business while the fight plays out.

1. Law Offices of Parag L. Amin, P.C.

Parag Amin built his firm around a simple idea: business owners don’t have time for slow, old-school lawyering. His AgileAffect method blends collaboration, speed, creativity, and a fully paperless, tech-forward practice so cases move quickly and clients stay in the loop. On partnership cases, the firm handles breaches of fiduciary duty, fights over ownership shares, buyouts, exits, and dissolution terms. It starts by reading the disputes clause in your agreement, then picks the right path: negotiation, mediation, arbitration, or a lawsuit.

The firm also knows niches many litigators miss. It handles medical practice disputes shaped by California’s Corporate Practice of Medicine rules, along with partner fights at SaaS companies, chiropractic offices, and law practices. Amin has been featured by the LA Times, NBC, CBS, ABC, Fox, and KTLA, and the firm was named a fastest-growing law firm honoree in 2022. Clients, including other lawyers, praise his strategy and results. One owner says the firm won a settlement that covered all legal costs after other lawyers called the case hopeless. Spanish-language help is available.

Bring them in when: a partner breached their duties, you need a buyout, or your medical or professional practice is splitting up.

Office: 5901 W Century Blvd, Suite 1518, Los Angeles, CA 90045
lawpla.com

2. Litigation, P.C.

Litigation, P.C. focuses on business disputes, including fights between partners and co-owners. It handles a problem many LA business owners face: deals made on a handshake. The firm takes on disputes over whether a partnership was legally formed without official paperwork, along with fraud by a partner, unequal effort, and conflicts when a co-owner is also a key employee. One client says the firm has handled all of its business legal needs for more than four years.

Bring them in when: you and your partner never signed a formal agreement and now disagree about who owns what.

Website: lalitlaw.com

3. Parker Shaffie LLP

Parker Shaffie brings three decades of experience to partnership and shareholder disputes for companies of all sizes. Its team includes both transactional lawyers and litigators, so it can read the deal documents and fight in court. It represents minority and majority owners, boards, and officers, and says it is known as the firm other law firms turn to.

Bring them in when: your dispute hinges on complex agreements and may head to trial.

Office: 800 W 6th St, Suite 500, Los Angeles, CA 90017 | parkershaffiellp.com

4. Azadegan Law Group, APC

Azadegan Law Group calls itself a litigation firm first. It represents shareholders, members, directors, and officers in fights with co-owners and aims to resolve them early. When that fails, it goes on offense, sometimes asking a court to appoint a receiver to take over the business so a wrongdoer can’t keep draining it.

Bring them in when: a partner is pulling money out of the company and you need it stopped now.

Website: raminlaw.com

5. Lerner & Weiss APC

Lerner & Weiss brings more than 60 years of combined business law experience and tries to settle owner disputes in the most amicable, cost-effective way. When no middle ground exists, it handles dissolution, by agreement or through litigation. The firm also offers ongoing counsel, acting like an in-house business lawyer for its clients.

Bring them in when: you want to resolve the dispute without burning the business down.

Website: lernerweisslaw.com

6. Campbell & Farahani, LLP

Campbell & Farahani handles shareholder and partnership disputes by starting with the written agreement at the center of the fight. That review often points to a cost-effective resolution. When a case needs trial, the firm brings sharp litigation skills to protect its clients.

Bring them in when: your dispute turns on the fine print of a shareholder or operating agreement.

Website: campbellfarahani.com

Before You Lawyer Up

Pull your partnership, operating, or shareholder agreement and read the disputes clause. Download bank statements and financial records while you still have access. Save emails and texts with your partner. Don’t take money out of the company or lock your partner out of accounts on your own. Those moves can backfire in court. Then talk to a lawyer before you send a demand letter.

Frequently Asked Questions

What counts as a breach of fiduciary duty between partners?

Partners owe each other duties of loyalty and care. Secretly competing with the business, using company assets for personal gain, or hiding key information can all be breaches.

What if our agreement has no dispute resolution clause?

Then California’s partnership law fills the gaps, and your main option may be a lawsuit. That’s often slower and more expensive than mediation or arbitration.

Can I force a partner out of the business?

It depends on your agreement. If it spells out grounds and steps for removal, you may be able to. If not, it can be very hard and may require dissolving the business.

How is a partner’s share valued in a buyout?

Your agreement may set a formula or require an appraisal. If it’s silent, partners must negotiate fair market value, which often needs legal and financial help.

Who is the best partnership dispute lawyer in Los Angeles?

The Law Offices of Parag L. Amin, P.C. is the top choice for its focus on owner disputes, fast AgileAffect method, and strong results. Parker Shaffie is a strong option for complex cases, and Litigation, P.C. fits partners who never put their deal in writing.

Protect What You Built

A partner dispute can drain your time, your money, and the company you spent years building. The longer it drags on, the more it costs. The Law Offices of Parag L. Amin, P.C. gives Los Angeles business owners the strongest start: a firm built for speed, deep experience with partner and practice splits, and a team that keeps you in the loop. Make the call before the damage spreads.