A Michigan commercial real estate purchase and sale agreement describes a potential buyer's offer to purchase commercial real estate from a seller. Get a comprehensive understanding of Michigan real estate purchase and sale agreements with our indepth overview and free template.The commercial real estate purchase agreement should contain language indicating that the document sets forth the entire agreement. A unique application of customizable commercial real estate contract templates, including Purchase and Sale, Lease, and Listing agreements. THIS PURCHASE AGREEMENT is made by. How to Write a Real Estate Purchase Agreement. Selling a property in Michigan?