Improved Familiar and alignment...

[Midnight_Angel]

Short simple question:

If I have an improved familiar, but my alignment changes, becoming incompatible, what happens?
Does my familiar leave me?
Is it actually capable of severing our soul bond on its own accord?

[HappyDaze]

It leaves. Bond is not severed - you have to do that yourself - but the familiar won't do anything for you until your alignment (and behavior) become compatible once more. Optionally, you can dismiss it and spend the time/money to get another familiar that is compatible with your new alignment.

[Frankthedm]

Prerequisites: Ability to acquire a new familiar, compatible alignment, sufficiently high level (see below).

>>>>>>>>>>>>>>>>>>> ;>>

A character can't use a feat if he loses a prerequisite, but he does not lose the feat itself. If, at a later time, he regains the lost prerequisite, he immediately regains full use of the feat that prerequisite enables.

[David knott 242]

But you don't lose the Improved Familiar feat, since the 3rd level options for that feat cover all possible alignments. I am pretty sure that you just lose your familiar until you either atone or dismiss it and summon one that is more compatible with your new outlook.