Get a comprehensive understanding of Ohio real estate purchase and sale agreements with our indepth overview and free template. The Columbus REALTORS® purchase contract shall be printed in 11-point Arial font, and all deviations in the standard form must be.9k views 5 years ago Using a sales commission agreement template is a practical way to create your own. This Purchase and Sale Agreement ("Agreement") is made and entered into between DMark. The agreement must have a start and end date. A For Sale By Owner contract Ohio must include: 1. The Purchase Price, 2.