1. I would contact an attorney.
Some quick thoughts, but always consult your attorney first before taking any actions.
2. Would NOT access the settlement offer, have your attorney check it out if he recommends it from his computer/IP.
3. Delete and scrub your droplet at Digital Ocean.
4. Maybe delete your Digital Ocean account and open a new one under a new email or use linode for a while.
I expect if you remove your droplet and aren't active on that IP and don't host any of their files or torrent activity in the future this might go away.
Good luck with it.