gestoría
agency for undertaking business with government departments, insurance companies etc; (for undertaking business with government departments, insurance companies etc)
In Spain gestorías are private agencies which specialize in dealing with legal and administrative work. For a fee they carry out the trámites (paperwork) involved in getting passports, work permits, car documentation etc and liaise with the Agencia Tributaria (Inland Revenue), thereby saving their clients much inconvenience and queueing time.