As soon as it has been established that the property can legally be sublet, the tenant must also have the permission of his owner to sublet the property. Most leases contain a clause that excludes the tenant from subletting without the written agreement of the lessor. The next step is to find a suitable, reliable and trustworthy tenant. Since the original tenant remains responsible for the condition of the property and the rents, this is very important. A sublet is the leasing of real estate by a tenant to a third party for part of the tenant`s existing lease. A deposit is a sum of money that the subtenant pays to the sublandlord as security to cover any damage that the subtenant may cause to the rented property. As a general rule, the subtenant must make the deposit available to the Sublandlord at the beginning of the sub-lease.