A business lease is a document that outlines the rental agreement between your business and the property you are renting (unless you own your own property). Before signing a business lease, you should carefully review it, and if you can, have it reviewed by an attorney or legal expert. Residential and business leases are very different, and generally, businesses are not protected by leases the way residents are. Your rental agreement and associated costs may be part of the package you submit with your loan application. Learn more about what you might need to collect for a loan application.