Our State-By-State Guide To Real Estate Forms will prepare you for exactly what you need, whether you live in Alabama or Wyoming. How to write a basic real estate offer in Massachusetts with ZipForms.Forms are state specific because real estate laws vary significantly from state to state. Purchase and Sale Agreement. A purchase and sale agreement is a contract between a buyer and seller for transacting a property in exchange for a specific price. I'd like to hear comments on how to make my offer more attractive. Edit, sign, and share contract to purchase real estate 501 online. No need to install software, just go to DocHub, and sign up instantly and for free. This form is used to make a written offer to purchase real estate. Many REALTORS® contact the National Association looking for real estate forms.