Last year, someone offered to buy one of my domain names. When I rejected his offer, he said he was working on a trademark for that name, so I was better off selling it to him. I still declined, but I've had that in the back of my mind.
Can I lose the domain name if he goes through with it, even if I had it first?
Any info will be greatly appreciated!

Can I lose the domain name if he goes through with it, even if I had it first?
Any info will be greatly appreciated!