"Wait, are A&J moving in WITH you, or just nearby? I interpreted 'moving her family here' as 'this city' but it appears Kevin interpreted it as 'my house.'"
Oops, that was an accidental assumption on my part.
Yes, merely moving closer together (in the same city) would probably be a lot easier and simpler than immediately all moving into the same domicile. What are your plans, and are they very flexible?