Would you move into house where someone you know died?

There would be no reason not too. If you are fearing some type of haunting then take some olive oil and go through each room in the house and say a pray asking for a blessing on the each room and put the olive oil on the door frames and doors of each room- then go to the front and back doors and do the same and ask for a blessing on the house and the home. This not a some magic formula but is a way of making it holy ground and cleaning the home of any fallen spirits that may linger there. Even if you do not believe - what harm would this do?