I have my service coming into my garage,(A 200 amp box) then a 100 amp breaker to the mobile home, then a couple more breakers in the garage. I am putting a modular home in, which has a 200 amp box in also. How should I wire them together.

Thanks;

How should I wire them together.How about you ask a bit more specific questions?
Where is your garage? Detached and free standing? How far from the new home?