Ok, first big red flag, its a CL ad and no reviews anywhere. Now, she just might be legitimate, and new to the business, but as a newbie yourself, let someone with more experience and wisdom go and scout the unfamiliar territory for you. Even before you see her, there ARE red flags you can identify just from doing some research on her.
First off, what about her pics? Do they have a professional appearance to them? Use a little logic here. If she has pics that have a professional polish, but has no reviews, and no website of her own, something doesn't add up. If she's smart enough to pay for professional pics, why isn't she bright enough to have a website?
Lets assume the pics are your typical grainy, can barely see any detail, background is clearly a cheap hotel pic that is common on CL. What does this tell you about her? She doesn't appear to have invested much time, thought, or effort into her "business". The likely reason is that she's looking at dollar signs, and you are the donor. She doesn't care if you repeat, in fact she expects that you won't, but she's happy while she counts the money, and the less effort she has to put forth, the better. If she intends to put effort into her time with you, having put some effort into her ads will be the first clue.
Outcall only sounds like a great idea. That reduces your concerns about LE involvement, but again, lets think this through. You know absolutely nothing about her. I am assuming that if you are seeing her as an outcall that she will be coming to your home? Do you want a completely strange woman showing up on your doorstep, neighbors agog while she stands there in neon pink hot pants, great hoop earrings, and 6" platform heels? If she turns out to be a complete flake, do you want her to know and remember your address? If she gets busted at some point, do you want her to have your information, including your address?
This is just some food for thought. My best suggestion is to stop, think, and use TER as a resource to find well reviewed ladies with excellent reputations until you have enough experience to go out and scout the new ladies yourself without putting yourself at risk.
Whatever you decide, good luck and have fun - and be sure to write a review!