Not sure about all the personal stuff, but it is against the TOS to transfer the account.
Big answer is I DONT KNOW, but…
For payment/address stuff you could change them then try to revert to see if it works. For payment get a $5 gift card from Wal-Mart and set that as the credit card.
I play a lot of games with my 10yr old daughter. Here are some of what we liked:
-Any lego game(there are sooo many and they often go on sale)
-trine series, much more puzzley
-sackboy a big adventure
-brothers a tale of two sons
-it takes two
-portal 2
-degrees of separation
-putty pals
-ibb and obb
-toodee and topdee
-bleep bloop
-battle block theater
-chariot
-pikunuku
We also loved going through the monkey island games. They are not mumtiplayer but they are slow point and click games that we bounced ideas off one another.