Alquiler con opción a compra

A double contract: an ordinary rental and, attached to it, the tenant's right to buy the home within an agreed period at a price fixed from the start. While the option is alive, the owner cannot sell to a third party. Its essential terms must be in writing: purchase price, duration of the option, initial premium if any, and what part of the rent paid is deducted from the price if the tenant buys — a freely negotiable percentage. Raised to a public deed, the option can be registered at the Land Registry, protecting it against third parties. It is useful for those who cannot yet finance the purchase (waiting to sell another property, for example) and for the owner, who secures a tenant with the vocation of a buyer.