HoM question

I just recently got the full vabian armor set and dedicated it to my HoM. I was wondering if I vendored the armor(I have no need for it) would it remove my monument or somehow undedicate the monument because its no longer in my inventory? The same goes for minipets as well. Would I lose a minipet monument if I vendored or sold the pet to another player? Thanks!

Nope! There is no need to keep it after it is dedicated. That goes for anything in the HoM aswell, hope this was helpful.

You are safe. i gave most of my ded minis away in Ascalon long ago. i dont like Vabbian either so i ded it and tried to salv for some the mats back.....got 2 rubies and plan mats........oh well its still in my hom.

There is no way whatsoever to lose progress in the HoM. Once something is in, it's in for good. Only exception might be that if your account gets perma banned you aren't able to link it to a GW2 account, but that's not really the same thing.

I've always wondered though... if you delete every single chars, is the HoM progress still kept ?

Yes. As I said, there is no way to lose progress. More specifically, it's per account, not bound to any particular character, so even if you wiped your account clean your HoM would be untouched.