If you plan to make changes to the property, you should also decide which party is responsible for paying for improvements and additions to the property. A commercial lease is a formal document between a lessor and a tenant to rent business real estate. If the tenant plans to manage a shop on the lessor`s premises, this agreement allows both parties to formalize the lease and their relationship by a document recognized by law. Hire a lawyer or design the lease yourself. Be sure to collect all the information about the property and the tenant and conclude the contract. Once completed, the document should be signed with the tenant and lessor in the presence of a notary. .