Allen Engineering, Inc. v. Summit Realty Corp.

Plaintiff, under contract dated April 30, 1976, began constructing a swimming pool and patio at defendant’s motel. On July 7, 1976, the parties realized that the pool and patio area were not large enough, and executed a new contract for a different shaped pool and larger patio, at an increased price. This later contract provided:

This contract supersedes all verbal and written agreements prior to July 7, 1976. This contract contains any and all agreements between the two parties:

Á later agreement for changes referred to the July 7 agreement and to no other.

After a dispute arose over…