Reach out and go see it! The sooner the better. Find the landlord, owner, or property manager contact details on the listing, and contact them to express interest, and to set up a viewing or attend an open house. After viewing the place, you will likely be asked to complete an application and possibly submit an application fee. Before being offered the lease, you'll be screened by the landlord, owner, or manager who will decide whether or not to approve you for tenancy.