A contract consists of a legally binding agreement or promise between parties. This video provides a step-by-step guide on how to fill out Maryland's Residential Contract of Sale form.Here's a quick reference guide for how to fill out the residential contract of sale. This is a Legally Binding Contract; If Not Understood, Seek Competent Legal Advice. Baltimore breach of contract attorney William S. Heyman of the Heyman Law Firm explains the elements a contract must meet to be legally binding in Maryland. (a) A party shall perform in a manner that conforms to the contract. (18) "Contract fee" means the price, fee, rent, or royalty payable in a contract under this title or any part of the amount payable. Lusk Law, LLC attorneys, Rebekah Lusk and Steven Bright, are experienced Frederick contract lawyers who are not only well-versed in the law.