Questions about hall of monuments.
No you cant link your GW1 account to 2 accounts .As far as unlinking i dont know but i highly doubt it that just seems way too abusable .
Unfortunately, the answer to both questions is no.
Only one Guild Wars account can be linked to one Guild Wars 2 account. There is no way to merge accounts or to aggregate Hall of Monuments achievements from multiple accounts.
I had, at one point, accidentally linked the wrong account to a Guild Wars 2 account, and customer service was able to help me (allowing me to switch the account linked to my Guild Wars 2 account), so it’s possible customer service can help you.
@Vayne, wow thats some good customer service there. I mean I’ve always had good dealings with them, But to get them to pull that off imho is impressive.