It's pretty easy to be a tax resident of two states. You just need one to be a domicile state and one to be a days-of-presence state.

Heck, I had a 1041 that was resident in two states (and yes, California was one of them). Two Lacerte files was the only workaround, and if it had multi-state income it seems like I had to use a third Lacerte file and swap pages to get it printed right. No e-file for me!