How would a Vigilante-Witch's familiar work?

[thull thrimm]

Namely a Magical Child/Beast Bonded

Could they have the same familiar (i.e. an animal guide with a patron ability that counts as your witch familiar)
or would you just get a regular witch familiar and a hole in your build(and your heart) where your animal companion should be.

And how would you stack an archetype on this.

For example if you were sharing your familiar's body waiting for a rez and it had the figment archetype, would you both cease to exist if you went to sleep.

Also, off topic, decoy fits in super well with beast bonded.
Turn into each other to change places for a minute/lv.

[CalethosVB]

All classes that grant a familiar stack for determining familiar abilities. You only get one familiar. A witch may not take the figment familiar archetype (says so in the figment familiar archetype).