Familiar possession?

[Balancer]

I have a magus that's going to take a familiar as his arcana and then take improved familiar at 7th level to gain a Cassisian angel. What i'd like to know if I'd be able to ask it to possess me giving me the Angelic Vessel Template.

My will save is atrocious so I was wondering if I would be able to be in control most of the time and having the angel take over if I get mind controlled?

[DrSwordopolis]

Talk to your GM. I'd be willing to roll with it in the right type of campaign, and would be against it in other campaigns.

In PFS? Nope.

[Balancer]

Cheers, not playing PFS and I'm looking to go deep on RP side of things for it so hope it gets the okay.