This video guide ill be linking comes from Billzumanati
If you go to
0:24 of his video and follow along you will download all 9 saves from his tag you will get ALL the achievements from this game. After downloading all 9 worlds you will start a new game, skip tutorial (Select dont ask me again if you havent already), and open gallery. Hit
over to "My library" select "Ghost family trophy", head down to bottom right to place household, replace, select yes, and then hit play. Once loaded select "Willow Creek", from there select "Streamlet Single" confirm and then play. As you're loading in the achievement should pop as well as the "Ghost Family" achievement should pop up right away!
Full Video guide:
3:14 "Ghost Family" & "Full House"