Common Assignment And Assumption Agreement Mistakes That Create Contract Risk

Assignment and assumption agreements are essential when a business needs to transfer its rights and obligations under a contract to another party. Whether you are selling your business, restructuring, or outsourcing obligations, these agreements can be a practical solution. However, many US founders and operators underestimate the risks involved. Common mistakes, such as missing required consents, failing to define the agreement's scope, or ignoring state law, can lead to disputes, unenforceable contracts, or unexpected liabilities.

For example, you might believe that simply signing an assignment and assumption agreement is enough to transfer all your rights and duties. But if you overlook a consent requirement or misunderstand your ongoing liability, you could face costly legal consequences. This guide will walk you through the most frequent mistakes, explain what to check before signing, and provide practical steps to reduce contract risk in your business.

What Is an Assignment and Assumption Agreement?

An assignment and assumption agreement is a legal contract used to transfer the rights (assignment) and obligations (assumption) of an existing contract from one party (the assignor) to another (the assignee). This document is common in business sales, asset transfers, and restructures. For instance, if a startup sells its assets, the buyer may want to take over key contracts, such as leases, supplier agreements, or client contracts. The assignment and assumption agreement formalizes this transfer.

• Assignment means transferring the benefits or rights under a contract to another party.
• Assumption means the new party agrees to take on the duties or obligations under that contract.

There is no single federal law governing assignment and assumption agreements. Instead, state contract law and the original contract's terms control whether and how rights and obligations can be transferred. Some contracts freely allow assignment, while others strictly prohibit it or require written consent from the other party. Certain industries, like real estate, healthcare, or government contracting, may have additional statutory requirements or restrictions.

Understanding these basics is only the start. The most significant risks often arise from details overlooked during drafting or execution. Below, we explore the most common mistakes and how to avoid them.

Common Mistake 1: Missing Required Consents

One of the most frequent and expensive mistakes is failing to obtain all necessary consents before executing an assignment and assumption agreement. Many contracts include a clause restricting or prohibiting assignment without the other party's written consent. Ignoring this can result in:

• The assignment being void or unenforceable
• A breach of contract claim against the assignor
• Loss of valuable rights or benefits under the contract

Consider a founder selling a SaaS business. The buyer wants to take over all customer contracts. If those contracts require customer consent for assignment and the seller fails to obtain it, the buyer may have no legal right to serve those customers or collect payments. Worse, the seller could face breach of contract claims.

Consent requirements can vary by state. For example, under California law, consent to assignment in a contract may not be unreasonably withheld in some commercial leases, but in New York, parties can generally withhold consent for any reason unless the contract says otherwise. Always check the governing law of the contract and the specific language used.

Checklist for consent:

• Review the original contract for assignment or transfer clauses
• Determine if consent is required, and from whom (landlord, customer, vendor, lender, etc.)
• Obtain written consent before executing the assignment and assumption agreement
• Keep records of all consents and related communications
• For contracts governed by state law, check if there are statutory rules about consent (for example, some states require that consent not be unreasonably withheld in certain situations)

Do not rely on verbal assurances. Written consent is critical, and some states require it for the assignment to be effective. In regulated industries, such as healthcare or government contracting, agency or regulatory approval may also be required.

Common Mistake 2: Unclear Scope of Assignment or Assumption

Another major pitfall is failing to clearly define what is being assigned and what is being assumed. Ambiguity can lead to disputes about which rights and obligations have transferred and which remain with the original party. This is especially risky when multiple contracts or complex obligations are involved.

For example, a founder sells a business and assigns all "vendor contracts" to the buyer. Later, the parties disagree about whether a specific software license was included. Or, the buyer assumes a lease but the agreement does not specify whether the buyer is responsible for unpaid rent that accrued before the assignment.

Some states, such as Texas, require that the scope of the assignment be clear and specific. If the agreement is vague, a court may refuse to enforce it or interpret it in a way that creates unexpected liability.

Checklist for clarity:

• List all contracts, rights, and obligations being assigned and assumed
• Specify effective dates for the transfer
• State whether the assignee is assuming liability for past breaches or only future obligations
• Clarify any exclusions, carve-outs, or partial assignments
• Attach schedules or exhibits listing the specific contracts or obligations if necessary

In some states, assignment of a contract does not automatically transfer obligations unless the assumption is explicit. Make sure the agreement spells out both assignment and assumption, and that all parties understand what is included.

Practical Example: A retail business assigns its lease to a buyer. The assignment and assumption agreement should specify whether the buyer is responsible for any repairs, unpaid rent, or property damage that occurred before the assignment date. If not, the seller may remain liable for these issues even after the transfer.

Common Mistake 3: Overlooking Ongoing Liability and Indemnity

Many founders believe that once a contract is assigned, the assignor is no longer liable for anything related to that contract. This is not always true. Unless the original contract or the assignment and assumption agreement specifically releases the assignor from liability, the assignor may remain responsible for breaches or obligations that occurred before the assignment, or even after, depending on the language used.

For example, if a business assigns a vendor contract to a buyer and the buyer later fails to pay, the vendor may still pursue the original party for damages if the assignor was not properly released. In some states, such as Illinois, the assignor remains liable unless there is a clear release by the non-assigning party.

Checklist for liability and indemnity:

• Include language that addresses whether the assignor is released from future liability
• Specify who is responsible for breaches or obligations that occurred before the assignment
• Consider including indemnity clauses to allocate risk between assignor and assignee
• Check if the original contract requires a release from the other party
• Address insurance coverage for any ongoing risks

Practical Example: A startup assigns its office lease to a buyer. The lease requires the landlord's written consent for assignment and states that the original tenant remains liable unless expressly released. If the buyer defaults on rent, the landlord can pursue the original tenant for unpaid amounts unless the landlord signed a release.

Indemnity clauses are also important. For instance, the agreement can require the assignee to indemnify the assignor for any claims arising from the assignee's actions after the assignment date. This helps allocate risk and clarify responsibilities.

Common Mistake 4: Ignoring State Law Differences and Formalities

Assignment and assumption agreements are governed primarily by state contract law, and requirements can vary significantly. Some states require assignments to be in writing, especially for contracts involving real estate, intellectual property, or certain commercial transactions. Others may have unique rules about what can and cannot be assigned.

For example, in California, certain personal service contracts cannot be assigned without the other party's consent. In New York, the Uniform Commercial Code (UCC) applies to assignments of accounts receivable or other commercial rights, requiring specific notices or filings. In Florida, assignments of leases must comply with state-specific statutes and may require notarization or recording.

Some contracts are considered "personal" and cannot be assigned at all. For example, employment agreements, consulting contracts, or contracts for unique services often cannot be assigned without explicit permission. State law may also prohibit assignment of certain licenses or government contracts.

Checklist for state law compliance:

• Check the governing law clause in the original contract
• Research state-specific rules for the type of contract being assigned
• Ensure the assignment and assumption agreement meets any formal requirements (writing, notarization, filing, etc.)
• Confirm that the contract is assignable under state law and industry regulations
• Consult with a legal professional for complex or high-value assignments

Practical Example: A healthcare business in Texas wants to assign a Medicaid provider agreement as part of a sale. Texas law and federal regulations require agency approval before such an assignment is effective. Failing to obtain approval can result in termination of the agreement and loss of reimbursement rights.

Common Mistake 5: Failing to Address Payment Terms and Consideration

Every contract requires consideration to be enforceable. In the context of an assignment and assumption agreement, consideration is usually the value exchanged for the transfer of rights and obligations. This can be a payment, assumption of debt, or other benefit. Problems arise when the agreement does not clearly state what consideration is being provided, or when payment terms are vague or missing. This can lead to disputes about whether the assignment is valid or whether additional payments are owed.

For example, if a business assigns a valuable contract to a buyer and the agreement does not specify the payment amount or due dates, the parties may later disagree about whether the assignment was effective or whether further payments are required. In some states, such as Delaware, courts may refuse to enforce an assignment if consideration is not clearly stated.

Checklist for payment and consideration:

• Clearly state the consideration for the assignment and assumption
• Specify payment amounts, due dates, and methods
• Address what happens if payment is late or not made
• Include any escrow or holdback provisions if applicable
• Reference related agreements (such as a purchase agreement) if consideration is bundled

Practical Example: In a business sale, the assignment and assumption agreement states that the buyer will pay $50,000 for the transfer of certain contracts. The agreement should specify when and how payment will be made, what happens if payment is not received, and whether any portion is held in escrow pending completion of conditions.

Best Practices and Additional Pitfalls for US Startups and Small Businesses

Avoiding the most common assignment and assumption agreement mistakes requires careful planning and attention to detail. Here are additional best practices and pitfalls to watch for:

• Start with the original contract: Review assignment clauses, consent requirements, and any restrictions or conditions. Some contracts contain "anti-assignment" clauses that strictly prohibit assignment, even in the event of a business sale.
• Get all required consents in writing: Do not rely on verbal agreements or informal emails. Some states require notarized or formally executed consents for certain assignments.
• Be specific about what is being assigned and assumed: List contracts, rights, obligations, and any carve-outs. Use schedules or exhibits for clarity.
• Address liability and indemnity: Spell out who is responsible for pre-existing breaches and future obligations. Include indemnity clauses where appropriate.
• Check state law and industry rules: Research any special requirements for your type of contract or business. For example, real estate assignments may need to be recorded in some states.
• Document payment terms and consideration: Make sure the agreement is enforceable and clear on value exchanged. Reference related agreements if needed.
• Keep records: Maintain copies of the original contract, consents, and the executed assignment and assumption agreement. This is critical if a dispute arises later.
• Address third-party notices: Some assignments require notice to third parties, such as lenders, regulators, or insurance carriers.
• Review for cross-defaults: Assignment of one contract may trigger default or termination rights in related agreements. Check for cross-default clauses.
• Seek legal review for complex or high-value deals: Small mistakes can have big consequences. Legal review can help identify hidden risks.

Assignment and assumption agreements are not one-size-fits-all. Each agreement should be tailored to the specific contract, parties, and transaction involved. For example, a simple assignment of a software license may require only a short agreement, while the transfer of multiple contracts in a business sale may require detailed schedules, consents, and releases.

Common pitfalls to avoid include:

• Assuming all contracts are assignable without checking for restrictions
• Failing to notify or obtain consent from all required parties
• Using generic templates that do not address specific state law or industry requirements
• Overlooking ongoing liability or failing to include release and indemnity language
• Not documenting payment terms or consideration clearly
• Neglecting to update related agreements or notify third parties

By following these best practices and avoiding common mistakes, US startups and small businesses can reduce the risk of disputes and ensure that their assignment and assumption agreements are effective and enforceable.

FAQs

Can any contract be assigned and assumed?

No, not every contract can be assigned and assumed. Many contracts include anti-assignment clauses or require the other party's consent. Some types of contracts, such as personal service agreements, government contracts, or certain intellectual property licenses, may be non-assignable by law or regulation. Always check the original contract and relevant state law before proceeding.

What happens if I assign a contract without required consent?

If you assign a contract without required consent, the assignment may be void or unenforceable. The non-assigning party may have the right to terminate the contract or seek damages for breach. In some cases, you may lose valuable rights or face legal claims. It is critical to obtain all necessary consents in writing before executing an assignment and assumption agreement.

Does the assignor remain liable after assignment?

Unless the original contract or the assignment and assumption agreement specifically releases the assignor from liability, the assignor may remain responsible for obligations or breaches that occurred before or even after the assignment. Many states, such as Illinois and New York, follow this rule. Always include clear release and indemnity language if you want to limit ongoing liability.

Is consideration always required for an assignment and assumption agreement?

Yes, consideration is generally required for any contract to be enforceable, including assignment and assumption agreements. Consideration can be payment, assumption of obligations, or other value. Some states, such as Delaware, require that consideration be clearly stated. Clearly document the consideration in the agreement to avoid disputes.

Can I use a template for assignment and assumption agreements?

Templates can be a helpful starting point, but they often fail to address specific state law requirements, industry regulations, or the unique terms of your contract. Using a generic template without customization can increase the risk of mistakes. It is best to tailor each agreement to the specific transaction and seek legal review for complex or high-value deals.

Key Takeaways

• Assignment and assumption agreements transfer contract rights and obligations but are subject to state law and the terms of the original contract.
• Common mistakes include missing required consents, unclear scope, ongoing liability, ignoring state law, and vague payment terms.
• Always review the original contract, get all consents in writing, specify what is being assigned and assumed, and address liability and consideration.
• State law and industry rules can affect whether assignment is permitted and what formalities are required.
• For complex or high-value deals, legal review can help avoid costly mistakes.

If you are considering an assignment and assumption agreement or want to review your contracts for assignment risk, our team can help you understand your options and reduce legal exposure. Contact us at (888) 449-8437 or team@sprintlaw.com to discuss your needs. Where legal services are required, they are delivered by licensed lawyers at trusted US law firms through the Sprintlaw platform.