Advice Please: Studying Law in spain

Hi,

I just graduated with a dual degree in english literature and spanish. I've always been interested in law and I really love Spain, and so am considering studying there. I have a question about the different legal systems. I've seen some posts here that say that sometimes people coming from the UK to study law in Spain who already have a degree have difficulty because of the difference in legal systems. Is this true also for other countries in Europe? For example, if I were to get a degree in Spain and want to work later on in France - is there a way to do that? One of my biggest reservations about law is that it feels very restricting in terms of where one must settle for the rest of his or her life, haha, this is why i ask.

thank you :o)