An option to purchase agreement is a legal contract that grants a party the right to buy a property or asset at a specified price within a specified timeframe. Our San Antonio contract lawyer helps businesses with vendor contracts, employment contracts, and partnership agreements.The option fee is an essential element in Texas real estate transactions, offering buyers a window to conduct due diligence on a property. Control your purchase of printing, publishing, and digital services at competitive prices from hundreds of certified, tested, and reliable vendors. An option to buy contract is an agreement between two parties where an investor or tenant pays a fee in exchange for the rights to buy a property in the future.