I am not a lawyer only a mere Chartered Surveyor who not only sells in Spain [ mainly between Alicante and Mojacar] and also a buyer [ more than one] e-mail me your problems and I may be able to point you in the right direction or give some non lawyer advice
You can see my profile on
MySpace.com - Brian - 64 - Male - Macclesfield, UK - www.myspace.com/brianrowlands or if you e-mail I can give you my tel no if you prefer to talk instead of e-mail