Derwalt, the Sea Singer gets the Familiar at level 2 but uses the Bard's level as his Wizard level. Same for the Cleric, it states that the Familiar uses the Cleric's level.
So another question. If I am a level 12, 5Cleric/5Bard/2Msytic Theurge and I take Improved Familiar then make a Homunculus what would the level be?
Would it be level 10 since both my cleric and bard levels stack for the familiar?
The reason I ask is because both Cleric and Bard classes say you only get to pick from a Monkey or Parrot. But the feat for Improved Familiar just says you need to have the ability to get a familiar as a prerequisite.