Naming the Parties - You begin the contract by naming the parties in the agreement. This may seem obvious, but attorney Mark Cohen of Colorado writes in his article Ten Things to Consider Before Signing a Contract that "a common error is to use the name of a person representing an entity rather than the name of the entity."
Sign and Date the Contract - "If an entity is a party to a contract, it is imperative that the signature block properly identifies the party signing on behalf of that entity," writes Michigan attorney Michael J. Hamblin in his website's article How to Properly Sign a Contract so It Will Be Enforceable. The signature block should name the entity, then under the signature, the name and title of the person signing, such as: Jones Plumbing, LLC By: John Jones Manager. Each signee should include the date next to the signature.