So, I thought my therapist had mentioned something the other about an organization he'd joined so he could see clients virtually (legally!) in a neighboring state. I just googled, and it looks like if a therapist joins
PSYPACT, if it's a state where that's allowed (looks like the majority of states), then they can legally treat someone in a different state, as long as that state participates in it as well (not sure if it applies to all states in the program, like if, say, a therapist in Pennsylvania could treat a client in Texas or only neighboring states. Also don't know if it's all types of therapists or only specific ones. But could be something to look into if your T's state and your current state are on the list. Looks relatively inexpensive to join (either $40 or $400).