There are two main offer forms used in Massachusetts. From: ("Buyer") TO: ("Seller").An Offer to Purchase is a legal document that outlines the terms and conditions of a real estate transaction. This form is used to make a written offer to purchase real estate. Make and accept an offer. We use an offer form in the State of Massachusetts. Q: What is the Massachusetts Mandatory Real Estate Licensee Consumer Relationship Disclosure Form? The next step to buying a house is making an offer. Deposit shall be held by.