Learn the 9 things to include in a purchase agreement to legally protect you when buying or selling assets, products, or services with another party. We're going to be reviewing and going over the as is residential contract some of the best practices builds and clauses in here.Both the seller and purchaser will need to sign the title. • Give the buyer a printed bill of sale. Addendum to Contract for Purchase and Sale (Pages 1 of 4). NOTE: Page 4 requires signature of purchaser and seller. Personal Property is included in the Purchase Price, has no contributory value, and shall be left for the Buyer. 22. Cross purchase agreement. Each owner of the company takes out, and is beneficiary of, an insurance policy on each of the other owners. Strayer University is an accredited online institution offering flexible degrees on your terms.