Some unusual and downright worrying advice in this thread...
In case anyone isn't aware of the following things:
1. Prostitution is a serious crime.
2. Prostitution, especially trans prostitution, is extremely dangerous from a health perspective (drugs, diseases, etc.) and a violent crime perspective (assault, murder, etc.)
If someone you know is a prostitute, they need help, not someone who enables it. "It's her life, she can do what she wants," while in theory absolutely correct, is irresponsible.
Am I way off base here?
Antonia, you did the right thing. You found her info about a more appropriate place to stay and you're not getting yourself involved. Sometimes, discretion is the better part of valor. It's so easy to get in too deep in these kinds of situations and do more damage than good.