Carol_Hill said:
Honestly, I'm not sure anyone here knows the answer to your question. Better to consult a real estate agent AND an attorney that knows French side laws.. But definitely start with a real estate agent. Several years ago, I know that most Americans purchased property on the Dutch side because of the high taxes on the French side. I don't have any idea whether that is still the case or not. Personally, if you really are interested, suggest you contact a real estate agent, or two, for some advice.
More sound advice however what is known as an Expert-Comptable which is the French equivalent of a US CPA will have the answers to your tax questions more readily than an ordinary attorney ( with apologies to all you learned counsels out there) been there! The realtor is the place to start.
Again good luck and Cheers