..., although nothing is guaranteed in the hobby.  You said the following things: (1) she's a legitimate provider, (2) you've seen her previously, and (3) she's reviewed.  These things alone reduce the odds of being busted to nearly 0%.  Once you've paid for her time, you and her are just two consenting adults fulfilling your sexual urges.  Unless LE somehow records you saying something illegal, the grounds for any bust are extremely weak.  And "how can I be safe?"  You're already doing that.  

I see a lot of the same concerns from numerous posters.  I decided to take a quick Google trip and come back with some information that I posted on the legal board.  Feel free to read if you're interested.  I posted in three parts due to the length and to break it up into logical sections.

http://www.theeroticreview.com/discussion_boards/viewmsg.asp?MessageID=7619&boardID=25&page=1

http://www.theeroticreview.com/discussion_boards/viewmsg.asp?MessageID=7620&boardID=25&page=1

http://www.theeroticreview.com/discussion_boards/viewmsg.asp?MessageID=7621&boardID=25&page=1

What can I say?  I got bored

. With a new provider I don't pay until I am leaving .. That way I know I can't be busted..I walk in the room and say missed you baby and start kissing her and  If she asks for the donation or asks me what I want to do I say  " What the hell are  you talking about and leave"