Salem

im new so wondering if i come across a house on a develped land buts it vacated can i claim the land and house with a new writ. thanks

Yes you can.

thanks

you might need to destroy the old claimstone though (you are able to do so if it is not upkept)

If you were breaking down wall to get into unkept claim would you be attacked by braziers?

No, it's unkept.

braziers will only fire from criminal acts: if you don't have them enabled there is no way to get them to attack you (possibly short of combat, but I'm not even sure about that one)