Exchange 2007 to Exchange 2013 Address List Upgrade ?

Hi All, I am working on a Migration project Ex2007 to Ex2013

I have few queries on this topic

1, Do we need to migrate(Upgrade) the Address List from Exchange 2007 to 2013? because when we migrate from Exchange 2003 to 2007 or 2010 we have convert the LDAP to OPATH.. Just want to clear on this topic

2, Can we place a FSW on Domain Controller?

I have seen few articles but they says, yes we can? but i dont see any such word in Tech Net website.

Need your feedback on this topic

Thanks,

Balgates

Regards, Balgates