The assembly sets the owners' cuotas, and one of them funds the reserve fund. That fund pays for the tools, materials, equipment, machinery and labour the condominium needs, and for works and maintenance.
Ley de Propiedad en Condominio de Inmuebles para el Distrito Federal, art. 55
Owners or possessors in arrears lose their vote at the general assembly but always keep their voice, except in assemblies convened to change the constitutive deed, end the condominium regime or affect ownership of the property.
Ley de Propiedad en Condominio de Inmuebles para el Distrito Federal, art. 34