If a person is added to title using a quit claim deed, are they added to the mortgage or deed of trust?
No, they are not automatically added to the note, so they may have a superior interest compared to other owners who owe on the property, while the additional owner does not. The lender will likely gladly add an additional responsible party to the mortgage at their request, since they have other borrowers on the hook already, so adding another just adds to their likelihood of being paid back.