I will go with pretty much everything that has been said previously, especially about being careful buying in Catalunya (there are very very few legally built viviendas with a cedula)
Also agree about the Lawyer Ton Battle, he actually worked for some clients of ours and he was super efficient and very thorough and asked all the right questions and more besides(and I'm an agent.... ::)

I wish you the very best of luck, sincerely.
Jools