It is understandable that landlords want to ensure that their tenants, whether individuals or businesses, have the financial means to fulfill the obligations set out in the rental agreement. If a tenant without sufficient property violates his lease by leaving prematurely, refusing rent or damaging the space, the landlord cannot recover his damage. The owner does not have to pay anything. For this reason, if a lessor is unsure of the creditworthiness of a potential tenant, it will often require the tenant to provide a guarantee from a natural or legal person with sufficient assets to ensure the tenant`s obligations. The guarantees must indicate that the lessor delivers the rental contract on the reliability of the guarantee. Owners and guarantors must sign the warranty.