For experienced brokers, late-stage contract adjustments are a routine part of closing transactions.
The mechanics are familiar and include repair credits, possession agreements, date extensions, etc.
What is less visible, and where attorney involvement becomes critical, is the legal exposure those changes can generate when they are not handled with precision.
Modifications Require Mutual Assent and Proper Documentation
A signed purchase agreement is a binding contract.
Any modification to its terms requires the same elements as the original agreement: mutual assent; consideration; and a written, signed amendment in jurisdictions where the statute of frauds applies, which includes most real estate transactions. A verbal understanding between parties, even one both sides fully intend to honor, is generally unenforceable against a party who later disputes it.