Transferred points retain their own home resort and UY so they are not added to any of the contracts. They would simply be put into your account and when you call MS, they would let you know they are there and that you want to use them.
You won't see them on the online system unless they are the same resort and UY as a contract you own. In that case, you would.
If all 7 contracts are the same resort and UY, I would assume they will just put them into one of the accounts, at least that is what they did with me. I own two BLT contracts--130 and 50--and when I got 90 BLT points, they were just put in the account for the 130 because they were the same UY--June--as I owned. The CM at MS didn't think that would happen, but it did.
To add, if they're under one master they're treated as one contract. there's no requirement that you match the points in each account. However, once you've made one transfer, you'll have used your one for the UY no matter how many sub accounts you have. You could transfer in 350 as one transfers or even 2000 if you wanted and could find them.