wouldnt be real concerned about that. You might mention, if you have not already, that you met her last year and see the reaction you get.  
If she is seems happy about that ask if she still looks the same and likes to do the same things and see how she reacts. If she is still enthusiastic that would be a good sign. If she is vague or non commital ,,,uuuhhh..that would be a red flag for me..Good luck

A good friend tells the story about rushing to make an appointment with an old favorite only to find out she was not who she said she was.
Did contact happen through a recognized email address or phone number?   If not it certainly could be a case of identity theft but that should be pretty obvious when you get there.

Since you've seen her before - you'll know the second the door opens if it's the same person or not.

If it's a different person - turn around and walk away

I also just saw an ad on BP for a lady in the Baltimore Area that has pretty good reviews.  Problem is, her last review is from May 2011.  The other thing that bothers me is that her ad says she loves 420.  Not sure why a provider would advertise that, just asking for trouble.

Anyways, chances are, it could be nothing and she could be great like her reviews.  I make my own choice though and decide it's best to pass.  I'd rather not take the risk.  I keep thinking it could be LE that has obtained the old Phone Number and are posting ads with it referring to old reviews.

Probably Paranoid, but hey, I'll be Paranoid and not arrested LOL.

I'm fairly sure I read that she had an accomplice robbing people in her room, or the parking lot.