U.S. National Directory – Used to perform a national verification of a geographic area or area. The period of validity of the rental contract is indicated in a separate line of this form. The lessor must present a lease agreement concluded with an option to purchase, which can be signed by both parties. In addition, the parties must bring the following: you cannot sell the house if the market improves and you are still under the terms of the lease. If the contract contains the selling price, you cannot increase the price. If the buyer does not back down and improve his credit, you are left with an empty rent. Leasing with call option contracts should be carefully considered prior to signing. These are costly long-term agreements that warrant scrutiny.