Well, the FBI says it's a coincidence.
I didn't ask her about the hijackers! Are you insane?! What if she
was a terrorist, spy, or agent????? The everglades were seven miles away!!
No, seriously, when we talked, I wasn't aware of this hijacker story. I just stumbled on that (fairly) recently, and recognized her and her husband's names.
I was aware that the 'jackers had lived in the neighborhood for a while, in Delray.
Her office was on Federal Highway (US1); the main drag, if you will. So if they popped into town and needed an apartment, it's reasonable to think that they just pulled into a convenient real estate agency on the main street.
Or....