I have been sued also for trademark. I made 70,000 dollars on it by selling out.
Note:
The trademark was actually mine.
The people that sued just WANTED that domain.
They would have lost in court.
I would have to pay about 60k in legal costs to keep the domain.
The domain was parked.
I had no plans for it actually so the lawyers told me how the "Business World" works.
Right or wrong money wins.
They wanted the domain and were in the position to force me to put a lot of money to keep my property or give it up. The domain was worth about 120k and I had to settle for less.
Right or wrong money wins.
I have over 25 years in Intellectual properties and most here gave the right advice. You do not have a leg to stand on once you sell or make any money on that. "Fair use" is a very narrow doctrine and not a right. It is an "excuse" for copyright infringement. It cannot be used where any commerce has taken place so it is moot once that site earns penny one. If the site is a public service site with no advertising earnings or sales it may pass muster but you might ask yourself why advertise for them free? Even if you use it for links and
pr to other properties of yours you will be in danger of the commercial criteria if those sites earn money. Of course a wise business man waits until there is money to be had before taking one to court, that said everything is choice vs risk.
Good luck in any direction you take.