@MICHAIDER To move the family you would need to have an unoccupied house.
If you have an unoccupied home, tap on that empty/unoccupied home (must currently be showing the house icon, rather than a Sim's face on the Town Map), select Relocate Household option and the family that you want to move into the house. The family and their pets will automatically be moved to the new home.
If an house is occupied by just one Sims, you can either delete that Sims or move them out to another Sim's home (they will need to have a close relationship to make this social interaction available).
Let us know if you have any other questions!
- Kristi
