Forms for real estate brokers and salespersons. Find forms you may need as a real estate professional in Massachusetts.How to write a basic real estate offer in Massachusetts with ZipForms. Seller agrees to sell to Buyer and Buyer agrees to purchase from Seller the following described real estate in __________________ County, State of Washington. Forms are state specific because real estate laws vary significantly from state to state. Learn how to obtain an out-of-state broker or salesperson license to Massachusetts through reciprocity. The document is a binding contract for the purchase of real estate in Massachusetts, outlining the terms and conditions between the buyer and seller. Understanding Washington contracts real estate is crucial for anyone looking to buy or sell property in the Evergreen State. Please note it could take several days for the new forms to populate. If the potential buyer likes the home, an offer in the form of a purchase agreement is written.