This fill-in-the-blank form can be used to change or extend inspection, signing, financing or other dates contained in a signed real estate contract. How to write a basic real estate offer in Massachusetts with ZipForms.Massachusetts Offer to Purchase Real Estate Form ✓ easily fill out and sign forms with PDFLiner ✓ download blank or editable online. Keep your buyer clients informed and updated through the entire real estate transaction with these free email templates. Choose from more than 30 examples. There are two main offer forms used in Massachusetts. We'll explain exactly what you should include in your offer letter. By the time you're done reading, you'll know how to write a winning real estate contract. In the event of any disagreement. The Law Office of David R. Rocheford, Jr. This sample form is for reference and educational purposes only.