Marqués de Lema, 7, the most conflictive estate in Spain: sandwiched cars, butrons and fees of more than 800 euros. Neighbors are afraid of the doormen, who despite being employees of the neighborhood community, are perceived as a body of surveillance at the president and property manager's service.

The owners are mostly single women, already pensioners, who have worked all their lives to buy a small apartment of between 35 and 45 square meters. What they are looking for is to suffocate them financially so that they sell poorly.