Hi
#2

I'm assuming you won't get your residency sorted before the Brexit deadline if you've not found somewhere yet, but if you head to the France forum the good folks there will be able to advise. Hope you can find somewhere lovely, best of luck.
#3

Hello Gary and welcome to BE
I'm not a Brit and don't know squat all about the ramifications of Brexit on European immigration but I do know that BE has a great France sub-forum that will help you sort some of your questions out. The lovely Brits who live in France and have lived there previously will be able to assist you.
Before you venture into the forum, please have a read of the Site Rules of conduct for BE. Listed below are the links for the SR and France forums.http://britishexpats.com/site-rules/
http://britishexpats.com/forum/france-76/
I'm not a Brit and don't know squat all about the ramifications of Brexit on European immigration but I do know that BE has a great France sub-forum that will help you sort some of your questions out. The lovely Brits who live in France and have lived there previously will be able to assist you.
Before you venture into the forum, please have a read of the Site Rules of conduct for BE. Listed below are the links for the SR and France forums.http://britishexpats.com/site-rules/
http://britishexpats.com/forum/france-76/