Mergers & Acquisitions Law: Post-Closing Disputes

The choice between asset purchase, stock purchase, merger, or consolidation directly determines who bears liability for pre-closing events and which party absorbs environmental, employment, or tax exposure.

In an asset purchase, the buyer acquires only specified assets and avoids most historical liabilities, whereas the seller remains responsible for undisclosed obligations. A stock purchase transfers ownership of the entire entity, including all liabilities, unless the purchase agreement explicitly allocates risk through representations, warranties, and indemnification clauses. Mergers and consolidations create a single surviving entity and trigger statutory successor liability rules that vary by state. We advise clients on Mergers and Acquisitions structuring to align your transaction form with your risk tolerance and operational goals.

Representations and warranties serve as the primary contractual defense mechanism. A seller typically represents that financial statements are accurate, contracts are valid, litigation is not pending, and environmental compliance is current. If a representation proves false post-closing, the buyer can pursue indemnification under the purchase agreement. Survival periods, caps, baskets, and escrow holdbacks limit the buyer's recovery window and the seller's exposure. A claim filed after the survival period expires is contractually barred, regardless of when the breach was discovered.

Federal and state regulatory approval is often a condition precedent to closing. Antitrust review under the Hart-Scott-Rodino Act, industry-specific approvals, and state consent decrees create mandatory waiting periods and disclosure obligations that delay closing and increase transaction costs.

Parties must file HSR notifications if the transaction meets size-of-transaction thresholds set annually by the Federal Trade Commission. The FTC and Department of Justice review filings for competitive harm; a Second Request for additional information can extend review by months and signal enforcement concern. Failure to file or comply with filing obligations can result in civil penalties and post-closing unwinding orders.

Industry-specific deals, such as healthcare transactions, require additional state and federal approvals. Hospital Mergers and Acquisitions involve review by state attorneys general, insurance commissioners, and the Centers for Medicare and Medicaid Services, each with distinct timeline and substantive requirements.

State law also imposes fiduciary duties on boards approving transactions. Directors must act in good faith, with care, and in the company's best interest. Disclosure obligations require that proxy statements and merger documents contain all material information shareholders need to vote on the transaction. Inadequate disclosure can expose the company and its board to injunctive relief or damages.

Thorough due diligence and precise disclosure schedules are your primary defense against post-closing indemnification claims. A buyer's failure to discover a problem during due diligence does not waive the seller's indemnification obligation if the seller failed to disclose the issue on the schedules.

Disclosure schedules are exhibits to the purchase agreement that list exceptions to the seller's representations and warranties. If an issue is properly disclosed on a schedule, the buyer is deemed to have accepted that risk and cannot later claim indemnification. Drafting clear, complete schedules requires careful coordination between the seller's legal team and operational managers to ensure no material items are omitted.

Closing conditions typically require receipt of third-party consents, absence of material adverse change, delivery of officer certificates, and legal opinions. A material adverse change clause allows a party to terminate if the target's business, financial condition, or assets suffer a substantial decline. Courts generally require a material decline in earnings, cash flow, or asset value that is not temporary and is not caused by general economic conditions.

When M&A disputes arise post-closing, parties typically pursue indemnification claims under the purchase agreement, which often includes arbitration provisions or exclusive New York jurisdiction. Understanding the procedural posture in New York courts is essential because timing defects in notice, failure to provide loss documentation, or missed contractual deadlines can bar your claim entirely.

Many purchase agreements require the indemnified party to provide prompt written notice of a claim and to cooperate in the defense. If notice is delayed beyond the contractual deadline, a court may find the claim waived even if the underlying breach is meritorious. In New York courts, a plaintiff seeking indemnification must plead the underlying breach with specificity, the loss suffered, and the causal connection.

Escrow arrangements, common in M&A transactions, create a separate fund held by a neutral third party to secure the seller's indemnification obligations. The buyer can make a claim against the escrow if indemnifiable losses occur during the survival period. Courts require that damages be quantified with specificity; speculative or contingent losses are not recoverable from escrow.

Tax treatment of the transaction can significantly alter the after-tax economics for both buyer and seller. A buyer acquiring assets receives a stepped-up basis in those assets, creating depreciation and amortization deductions; a buyer acquiring stock does not receive basis step-up unless a Section 338 election is made.

A Section 338 election treats a stock purchase as an asset purchase for tax purposes, allowing the buyer to revalue the target's assets and claim additional deductions, but it triggers corporate-level tax to the seller. The seller and buyer often negotiate who bears the tax cost of the election. Tax representations in the purchase agreement typically warrant that all tax returns have been filed, no audits are pending, and no tax liens exist.

State and local tax issues also require attention. Some states impose transfer taxes on asset purchases or impose successor liability for the seller's unpaid state taxes. A buyer can be held liable for the seller's uncollected sales taxes or unpaid employment taxes if the buyer does not obtain a tax clearance certificate or escrow sufficient funds.

Before any closing, ensure that all representations are supported by schedules, that disclosure schedules are complete and accurate, and that all third-party consents and regulatory approvals are in place. Missing documentation or incomplete compliance records can undermine your position if a dispute arises.

After closing, maintain detailed records of any issues that emerge and promptly notify the indemnifying party if a loss occurs that may be indemnifiable. Many purchase agreements require notice within a specified period; late notice can forfeit your claim. If a third-party claim arises, such as a customer lawsuit or regulatory investigation, document your efforts to mitigate the loss and preserve evidence of the underlying breach.

Consider whether your transaction requires ongoing compliance obligations, such as customer notification, regulatory filings, or contract amendments. Assign responsibility clearly so that neither party assumes the other will handle a critical task. These records become critical if you need to support an indemnification claim or defend against a claim by the other party.