A lawyer can help you determine what needs to be in your written contract to make it a legally binding and enforceable in a Florida court. Understand the Terms.Promises are not enforceable in Florida. Without the exchange of something of value between parties, there is no contract. Promissory estoppel is a claim made in an effort to make someone keep a promise, even though there isn't a written or oral contract. A written contract is made under Florida law when the three elements of contract formation are present. If you've experienced a breach of loan agreement or promissory note or wish to break one, contact Perez Mayoral Miami-Dade County today! "Florida past consideration in contract formation is a continually evolving issue in the law. Hire a contract attorney at 305-902-6282." Under Florida law, merger clauses are enforceable and effective ways to ensure that the parties are in complete accord as to the terms of their agreement.