Some Suggestions

In the Philadelphia area I would contact Solana Jewel a local institution and get her advice.  Her email can be found on her website at http://www.yourexoticcourtesan.com/taketheplunge2.html

You could also reference a great site for ladies starting out in this business at http://escortassistant.escortdiva.com/inside.php

Either of those should be a great help.  Also once you get a few reviews on here, get yourself signed up as a registered provider and get on the provider only board and the ladies should be able to help you there as well.

Good Luck and Good Hobbying.

Your basic screening is whatever you do in order to assure yourself that the potential client is not LE. You can use a work number, call it, and ask for the client. This would also mean the client tells you his name.

As for screening for potential threat, that is something I think you have to just use a gut feeling for. First check the blacklist sites for providers, many listings of clients that other providers have blacklisted and the reasoning why.

terrev has good ideas, find a well known provider in your area and pick her brain for a little bit. I wouldn't think any provider would have a problem with answering a couple questions from a new girl.

b-

access to that board yet, contact a few providers in your area to seek their advice.  There will be guys who want to see you without giving any information--this is not good.  You need to look out for YOUR safety before considering anything else.  There are some real wackoos out there; be cautious and let your gut (intellect if you prefer) guide you.