Also known as:merger doctrines · doctrine of merger
Written by attorneys · grounded in primary & secondary sources — see below
2 senses
1
in criminal law
A common-law rule under which the inchoate offenses of solicitation and attempt merge into a completed felony when the principal crime is accomplished by the defendant or another actor connected to the preliminary conduct, while conspiracy remains a distinct offense that does not merge.
2
Sense 1
1
in criminal law
A common-law rule under which the inchoate offenses of solicitation and attempt merge into a completed felony when the principal crime is accomplished by the defendant or another actor connected to the preliminary conduct, while conspiracy remains a distinct offense that does not merge.
Sources & Authorities· 1 primary source
Select any source to read its text and confirm it supports the definition.
Common Law
Sense 2
2
in real property law
A doctrine providing that a contract for the sale of land merges into the deed upon delivery and acceptance at closing so that unperformed contractual promises relating to title are extinguished while promises concerning matters other than title may survive as collateral agreements.
Sources & Authorities· 2 primary sources
Select any source to read its text and confirm it supports the definition.
A doctrine providing that a contract for the sale of land merges into the deed upon delivery and acceptance at closing so that unperformed contractual promises relating to title are extinguished while promises concerning matters other than title may survive as collateral agreements.
Each sense below has its own examples, sources, and questions.
Examples3
Solicitation Merges After Completion
Mustafa Mahmoud agreed with two lab assistants to divert experimental medications for black-market sale and later solicited a third employee to assist with removal. The third employee completed the diversion weeks later using a different loading dock. The completed felony absorbed the solicitation charge so separate conviction on the inchoate offense was barred.
Conspiracy Charge Survives Completed Offense
Malcolm McKinley conspired with a coworker to steal proprietary designs and the coworker later transmitted the files to a buyer. McKinley argued that the completed theft should merge the conspiracy count into the substantive offense. The court rejected the merger claim and permitted separate prosecution of the conspiracy.
Callanan v. United States364 U.S. 587, 81 S.Ct. 321, 5 L.Ed.2d 312 (1961)
Conspiracy Liability Extends to Completed Acts
Mariam Mansour entered a conspiracy to divert shipments and her co-conspirator completed the theft months later without further direction from Mansour. Prosecutors charged Mansour with both the conspiracy and the completed offense. The court upheld the separate conspiracy conviction because the doctrine does not merge conspiracy into the substantive crime.
Pinkerton v. United States328 U.S. 640, 66 S.Ct. 1180, 90 L.Ed. 1489
Frequently Asked2
Does the merger doctrine bar separate convictions for conspiracy and the completed substantive offense at common law?+
No. At common law the merger doctrine folded solicitation and attempt into a completed felony but left conspiracy as a distinct offense that does not merge even when the object crime is accomplished.
Supporting sources
When a solicited participant completes the principal offense does the inchoate conduct merge for the solicitor?+
Yes. The common-law rule treats the completed felony as absorbing the preliminary offenses when any actor connected through the solicitation or conspiracy finishes the crime even if the methods or scale differ slightly from the original plan.
Supporting sources
Common Law
Examples3
Repair Promise Discharged by Deed
Marco Marquez contracted to buy a warehouse from Maxwell Manufacturing and the agreement required the seller to repair the loading dock before closing. At closing Maxwell delivered a deed silent on the repair obligation and Marquez accepted it. After closing the buyer could not enforce the repair promise because the contract merged into the deed.
Title Covenant Merges but Condition Promise Survives
Mina Mehta purchased an office building from Morgan Financial under a contract promising both marketable title and post-closing installation of a backup generator. The deed delivered at closing addressed only title matters. After closing the title covenant merged and was extinguished while the generator promise remained enforceable as a collateral agreement.
Collateral Fence Promise Survives Closing
Michelle Murphy obtained a separate handwritten note from the seller promising to build a boundary fence after closing. Neither the purchase contract nor the deed mentioned the fence. After closing the buyer could enforce the note because the parties treated the fence obligation as an independent collateral agreement that did not merge into the deed.
Frequently Asked3
After a buyer accepts a deed at closing may the buyer still sue for breach of a contractual promise to repair the property?+
No. The doctrine of merger discharges contractual promises not embodied in the deed so the buyer cannot enforce a repair obligation that the deed does not restate.
Supporting sources
Does every pre-closing promise merge into the deed or do some survive?+
Some survive. Promises that concern matters other than title or that the parties intended to keep separate remain enforceable after closing as collateral agreements.
Supporting sources
May a buyer introduce evidence of an oral promise made during negotiations after accepting a deed that is silent on the subject?+
Generally no. The merger doctrine together with the parol evidence rule limits enforcement of prior promises not reflected in the deed unless the promise qualifies as a collateral agreement or an exception such as fraud applies.
Supporting sources
328 U.S. 640, 66 S. Ct. 1180, 90 L. Ed. 1489 (1946)White Collar Crime Law
…also may one be convicted of an offense not charged or proved against him, on evidence showing he committed another. The old doctrine of merger of conspiracy in the substantive crime has not obtained here. But the dangers for abuse, which in part it sought to avoid, in applying the law of conspiracy have not altogether disappeared.…