With 2 or more levels in a different class and then 1 lvl in a familiar granting class (such as Witch) and the magical Knack trait (up to +2 trait bonus to CL) make the familiar abilities/level 3 (thus +1 INT, +1 Natural Armor, +1 "Special")?
All familiars have special abilities (or impart abilities to their masters) depending on the master's combined level in classes that grant familiars, as shown on the table below. The abilities are cumulative.
I assume that means no, but since a trait is half a feat and the feet boon actually boosts it up to +4 in a similar fashion it might be intended to work. What do you think?