Continuing liability of assignorAssignor remains liable unless there is an agreement to the contrary. An agreement must manifest intent to transfer rights, it may not necessarily be in writing, words will do, and the rights assigned must be certain. The effect of a valid assignment is to extinguish privity between the assignor and the obligor and create privity between the obligor and the assignee.
Assignment of contract rightsAssignment of rights under a contract is the complete transfer of the rights to receive the benefits accruing to one of the parties to that contract. For example, if Party A contracts with Party B to sell Party A's car to Party B for $10, Party A can later assign the benefits of the contract - i.e., the right to be paid $10 - to Party C. In this scenario, Party A is the obligee/assignor, Party B is an obligor, and Party C is the assignee. Such an assignment may be donative (essentially given as a gift), or it may be contractually exchanged for consideration. It is important to note, however, that Party C is not a third party beneficiary, because the contract itself was not made for the purpose of benefitting Party C. However an Assignment only transfers the rights/benefits to a new owner. The obligations remain with the previous owner. Compare Novation.
When assignment will be permittedThe common law favors the freedom of assignment, so an assignment will generally be permitted unless there is an express prohibition against assignment in the contract. Where assignment is thus permitted, the assignor need not consult the other party to the contract. An assignment cannot have any effect on the duties of the other party to the contract, nor can it reduce the possibility of the other party receiving full performance of the same quality. Certain kinds of performance, therefore, cannot be assigned, because they create a unique relationship between the parties to the contract. For example, if party A contracts to hire an attorney to represent her in a civil case for a fee of $1000, she cannot then assign her contractual right to legal representation to another party. Note however, that party A can assign her right to sue under the same claim she contracted with the attorney to pursue.
Requirements for an effective assignmentFor assignment to be effective, it must occur in the present. No specific language is required to make such an assignment, but the assignor must make some clear statement of intent to assign clearly identified contractual rights to the assignee. A promise to assign in the future has no legal effect. Although this prevents a party from assigning the benefits of a contract that has not yet been made, a court of equity may enforce such an assignment where an established economic relationship between the assignor and the assignee raised an expectation that the assignee would indeed form the appropriate contract in the future.
A contract may contain a non-assignment clause, which prohibits the assignment of specific rights, or of the entire contract, to another. However, such a clause does not necessarily destroy the power of either party to make an assignment. Instead, it merely gives the other party the ability to sue for breach of contract if such an assignment is made. However, an assignment of a contract containing such a clause will be ineffective if the assignee knows of the non-assignment clause, or if the non-assignment clause specifies that "all assignments are void".
Two other techniques to prevent the assignment of contracts are rescission clauses or clauses creating a condition subsequent. The former would give the other party to the contract the power to rescind the contract if an assignment is made; the latter would rescind the contract automatically in such circumstances.
Requirement of a writingThere are certain situations in which the assignment must be in writing.
- Assignment of wages
- Assignment of any interest in real property
- Assignment of choses in action worth over $5,000
- Assignment as collateral for a loan or debt
NovationNovation replaces the original party with a new party. For a valid novation, (i) all parties must assent to novation, (ii) there must be a previously valid contract, (iii) the duties provided for in the contract be extinguished immediately, and (iv) a new, enforceable contract need be created.
RevocabilityAssignments made for consideration are irrevocable, meaning that the assignor permanently gives up the legal right to take back the assignment once it has been made. Donative assignments, on the other hand, are generally revocable, either by the assignor giving notice to the assignee, taking performance directly from the obligor, or making a subsequent assignment of the same right to another. There are some exceptions to the revocability of a donative assignment:
- The assignment can not be revoked if the obligor has already performed
- The assignment can not be revoked if the assignee has received a token chose (chose being derived from the French word for "thing", as in a chose of action) - a physical object that signifies a right to collect, such as a stock certificate or the passbook to a savings account.
- The assignment can not be revoked if the assignor has set forth in writing the assignment of a simple chose - a contract right embodied in any form of token.
- Estoppel can prevent the revocation of a donative assignment if the assignee changed their position in reliance on the assignment.
Breach and defensesA cause of action for breach on the part of the obligor lies with the assignee, who will hold the exclusive right to commence a cause of action for any failure to perform or defective performance. At this stage, because the assignee "stands in the shoes" of the assignor, the obligor can raise any defense to the contract that the obligor could have raised against the assignor. Furthermore, the obligor can raise against the assignee counterclaims and setoffs that the obligor had against the assignor. For example, suppose that A makes a contract to paint B's house in exchange for $500. A then assigns the right to receive the $500 to C, to pay off a debt owed to C. However, A does such a careless job painting the house that B has to pay another painter $400 to correct A's work. If C sues B to collect the debt, B can raise his counterclaim for the expenses caused by the poor paint job, and can reduce the amount owed to C by that $400, leaving only $100 to be collected.
When the assignor makes the assignment, he makes with it an implied warranty that the right to assign was not subject to defenses. If the contract had a provision that made the assignment ineffective, the assignee could sue the assignor for breach of this implied warranty. Similarly, the assignee could also sue under this theory if the assignor wrongfully revoked the assignment.
Successive assignmentsOccasionally, an unscrupulous assignor will assign exactly the same rights to multiple parties (usually for some consideration). In that case, the rights of the assignee depend on the revocability of the assignment, and on the timing of the assignments relative to certain other actions.
In a quirk left over from the common law, if the assignment was donative, the last assignee is the true owner of the rights. However, if the assignment was for consideration, the first assignee to actually collect against the assigned contract is the true owner of the rights. Under the modern American rule, now followed in most U.S. jurisdictions, the first assignor with equity (i.e. the first to have paid for the assignment) will have the strongest claim, while remaining assignees may have other remedies. In some countries, the rights of the respective assignees are determined by the old common law rule in Dearle v Hall.
- Earlier donative assignees for whom the assignment was revocable (because it had not been made irrevocable by any of the means listed above) have no cause of action whatsoever.
- Earlier donative assignees for whom the assignment was made irrevocable can bring an action for the tort of conversion, because the assignment was technically their property when it was given to a later assignee.
- Later assignees for consideration have a cause of action for breaches of the implied warranty discussed above.
Compare: DelegationA parallel concept to assignment is delegation, which occurs when one party transfers his duties or liabilities under a contract to another. A delegation and an assignment can be accomplished at the same time, although a non-assignment clause also bars delegation.
Special rules for assignment of certain rights
Property rightsReal property rights can be assigned just as any other contractual right. However, special duties and liabilities attach to transfers of the right to possess property. With an assignment, the assignor transfers the complete remainder of the interest to the assignee. The assignor must not retain any sort of reversionary interest in the right to possess. The assignee's interest must abut the interest of the next person to have the right to possession. If any time or interest is reserved by a tenant assignor then the act is not an assignment, but is instead a sublease.
The liability of the assignee depends upon the contract formed when the assignment takes place. However, in general, the assignee has privity of estate with a lessor. With privity of estate comes the duty on the part of the assignee to perform certain obligations under covenant, e.g. pay rent. Similarly, the lessor retains the obligations to perform on covenants to maintain or repair the land.
If the assignor agrees to continue paying rent to the lessor and subsequently defaults, the lessor can sue both the assignor under the original contract signed with the lessor as well as the assignee because by taking possession of the property interest, the assignee has obliged himself to perform duties under covenant such as the payment of rent.
Unlike a Novation where consent of both the lessor and lesse is required for the third party to assume all obligations and liabilities of the original lessee, an assignment does not always need the consent of all parties. If the contract terms state specifically that the lessor's consent is not needed to assign the contract, then the lesee can assign the contract to whomever the lesee wants to.
Absent language to the contrary, a tenant may assign their rights to an assignee without the landlord's consent. In the majority of jurisdictions, when there is a clause that the landlord may withhold consent to an assignment, the general rule is that the landlord may not withhold consent unreasonably unless there is a provision that states specifically that the Landlord may withhold consent at Landlord's sole discretion.
Partnership rightsA person can also assign their rights to receive the benefits owed to a partner in a partnership. However, the assignee can not thereby gain any of the assignor's rights with respect to the operation of the partnership. The assignee may not vote on partnership matters, inspect the partnership books, or take possession of partnership property; rather, the assignee can only be given the right to collect distributions of income, unless the remaining partners consent to the assignment of a new general partner with operational, management, and financial interests. If the partnership is dissolved, the assignee can also claim the assignor's share of any distribution accompanying the dissolution.
Intellectual property rightsOwnership of intellectual property, including patents, copyrights, and trademarks, may be assigned, but special conditions attach to the assignment of patents and trademarks. In the United States, assignment of a patent is governed by statute, 35 U.S.C. § 261. Patent rights are assignable by an "instrument in writing." Title in a patent can also be transferred as a result of other financial transactions, such as a merger or a takeover, or as a result of operation of law, such as in an inheritance process, or in a bankruptcy. An assignment of a patent can be recorded with the United States Patent and Trademark Office. Although such recording is not required, if an assignment is not recorded at the USPTO within three (3) months or prior to a subsequent assignment, the assignment will be void against a subsequent assignee without notice of the earlier, unrecorded assignment.
With respect to a trademark, the owner of the mark may not transfer ownership of the mark without transferring the goodwill associated with the mark.
Companies sometimes request from employees that they assign all intellectual property they create while under the employment of the company. This is typically done within an Employment Agreement, but is sometimes done through a specific agreement called Proprietary Information and Inventions Agreement (PIIA).