Our firm can assist you in drafting a vendor agreement that will protect your relationship with your vendor and your company's reputation. This Commission Agreement outlines the terms and conditions between sellers and brokers in Florida.It facilitates the selling or leasing of properties. Pursuant to section. The State of Florida, through the Department of Management Services, has instituted MyFloridaMarketPlace, a statewide eProcurement system. A lawyer can help you determine what needs to be in your written contract to make it a legally binding and enforceable in a Florida court. Understand the Terms. Square Contracts lets you build and customize professional contracts for your business. Set expectations, get paid, and protect your hard-earned money. Enter the buyer's and seller's information.