“I suspect she can’t seize anything outside of NY because: (1) she has no legal authority to enforce anything in another state, and (2) she might even be subject to criminal prosecution in another state.”
There are procedures to enforce a “foreign” judgement (i.e from another state), they vary from state to state. Texas procedure is pretty straightforward but as to be followed down to the last detail or is is subject to challenge. I have no ides about Florida.
This is one case where a state might feel empowered to simply refuse to recognize the “foreign judgement” in question.
Yes, a “foreign judgment” can be enforced but you have a right to challenge it in the foreign state.
It is possible to challenge the attempted enforcement as fraudulent on its face which could involve criminal prosecution in the foreign state.