As stated in point 4 of the first final provision, the new article 20 of the LAU after its modification by the current Housing Law, seems to refer to two previous expenses accrued prior to the signing of the leases, because first it talks about the management expenses, and, secondly, as closing the prohibition, of the subsequent expenses of formalizing the contract.,art%C3%ADculo%2020%20de%20la%20LAU.