3.
My soon-to-be-ex just moved out. Can I change the locks?
Technically, yes, since you both live there and own the house you could change the
locks. Be aware that this is likely to have unintended consequences. This is the kind of
move that can cause some real escalation in the friction and animosity level between
you two. Ask yourself how you'd feel if you came back and found the locks changed. If
you feel that you absolutely must change the locks, we suggest that you inform your
soon-to-be-ex of it as a common courtesy.
Also be aware that changing the locks won't necessarily keep your
soon-to-be-ex out of the house. He or she can return with the police, who may
assist them in entering the home so they may remove their property.