Mergers & Acquisitions Lawyers in California

Due Diligence Before Buying or Selling a California Business

Due diligence is the review process that helps a buyer understand what it is acquiring and helps a seller prepare for questions. Careful diligence can surface issues before signing, which may affect price, terms, or whether the deal moves forward at all.

Due diligence may involve reviewing several categories of documents and information:

• Contracts and commercial agreements.
• Financial statements and accounting records.
• Intellectual property and related registrations.
• Employment agreements and workforce matters.
• Other records relevant to the specific business.

Contract review is often central to diligence, because assigned or assumed agreements can carry ongoing obligations. Focused Contract Legal Counsel can help both sides understand what each agreement requires after closing. Where a dispute may already exist, Trusted Business Litigation Counsel can assess how pending or threatened claims could affect the transaction.

Purchase Agreements, Merger Agreements, and Closing Documents

The written agreements record what the parties agreed and how the deal will close. Omni Law P.C. negotiates and drafts letters of intent, purchase agreements, merger agreements, and other deal contracts, and supports deal structuring, corporate governance, and closing. You can read more on the firm’s Los Angeles mergers and acquisitions page.

Common documents in a California transaction include:

• Letter of intent (LOI): an early document that outlines the main proposed terms.
• Purchase agreement: the primary contract for an asset or equity purchase, including price, representations, warranties, and covenants.
• Merger agreement: the contract that governs how two companies combine.
• Closing documents: items such as assignments, bills of sale, and consents that finalize the transfer.

California Successor Liability, Tax Clearance, and Assumed Liability Issues

California asset purchases and business acquisitions can raise state tax and liability questions that deserve attention before closing. These issues are one reason many buyers structure deals carefully and request the right documentation.

The California Department of Tax and Fee Administration addresses successor’s liability in Regulation 1702, which applies to purchasers of a business or stock of goods. Under that regulation, a successor or purchaser may need to withhold enough of the purchase price to cover the seller’s tax liability in a purchase and sale of a business or stock of goods under a contract. That potential liability can extend to taxes, interest, and penalties incurred by the predecessor or former owner in connection with operating the business, including amounts not yet determined at the time of sale. A purchaser may be released from further withholding obligation by obtaining a certificate stating that no taxes, interest, or penalties are due, and the regulation states that in cases of doubt as to possible liability, the purchaser should obtain a certificate. You can review these points in CDTFA Regulation 1702, Successor’s Liability.

California M&A transactions may also involve bulk sales issues, state tax clearance requirements, and questions about which liabilities the buyer assumes. Because the answers depend on the facts, these matters are typically reviewed with counsel. Omni Law P.C. advises on assumed liabilities and successor liability as part of its California M&A work, as described on its California overview page.

Federal HSR Review and Larger California Transactions

Some larger California deals also trigger federal review. Under the Hart-Scott-Rodino (HSR) Act, parties to certain large mergers and acquisitions must file a premerger notification and wait for government review. Not all mergers or acquisitions require a premerger filing. Generally, a deal must meet minimum transaction value and party size thresholds, and those thresholds are updated annually. The Federal Trade Commission explains the process on its premerger notification and merger review page.

Under the FTC’s 2026 update, the size-of-transaction threshold for reporting proposed mergers and acquisitions under Section 7A of the Clayton Act increased from 126.4 million dollars to 133.9 million dollars, as stated in the FTC 2026 threshold announcement. Because these figures change annually, parties should confirm the current thresholds when a deal is being planned.

Other HSR points that may apply include the following:

• Once a filing is accepted, parties generally must wait 30 days before closing, or 15 days for a cash tender offer or bankruptcy, unless early termination is granted.
• Some stock or asset purchases are exempt, and some real property purchases are exempt.
• Parties file with both the FTC and the Department of Justice, but one agency reviews the proposed merger.

Post-Closing Integration, Disputes, and Contract Enforcement

A deal does not end at signing. After closing, the parties often work through integration, transition services, and any indemnification or earnout terms. Omni Law P.C. handles regulatory compliance, dispute resolution, closing, and post-closing integration as part of its M&A services. If a disagreement arises over deal terms, Representation for Breach of Contract Claims can help you understand your options. Ongoing Contract Legal Counsel can also support the day to day agreements that keep the combined business running.

Talk With Omni Law P.C. About a California M&A Transaction

If you are considering buying, selling, or merging a business, early planning can help you understand your structure, your risks, and your documents. Omni Law P.C. works with California companies on the full deal process, from letters of intent through closing and post-closing integration. To discuss your transaction, call (323) 300-4184 and ask to speak with a member of the M&A team.

Omni Law P.C. maintains active licenses and serves clients across New York, Pennsylvania, California, Florida, and New Jersey. If your deal touches more than one of these states, the firm can coordinate the work across those jurisdictions. Call (323) 300-4184 to get started.