As a rental property owner, you have a lot of expenses and you absolutely depend on the rent to be paid on time and in full. When a tenant is late with their rental payment, you have to be right on top of the situation. Many landlords just simply don’t know what to do. A professional can be strict, knows when and how to serve the proper notices, and will insist on late fees. They can document all communications and build a case against the tenant should the situation escalate to an unlawful detainer suit.