1 and 3 combined is a great why to freak someone out. As a "newbie" with no reviews and less then professional pictures, if I encountered someone like that, I would just leave. It is a scary enough situation as is, but coupled with not having any information/idea about the person you are meeting and then having them block your exit upon arrival, I personally would think you wanted to hurt me. The most you have to worry about is being out of money, this women is afraid that she will get rape, assaulted, or murdered.
Posted By: clarence37
I wouldn't worry too much about etiquette when contacting a BP provider with no website or links to review boards, etc. She will be either a newbie who doesn't know anything about etiquette, or a fake - and if she is legitimate and professional, she will handle your questions in a professional way. (Obviously, I'm not talking about saying "hey, how much to fuck?")
Asking for "updated pics" will probably not be well received, and as another poster suggested, are no proof of anything. Asking for a link to a website or review site is a great idea. If she can't provide that, then you are IMMEDIATELY in TOFTT world, and you just have to decide if you want to do that.
If you decide to TOFTT, be sure to protect yourself in every way possible:
1) Give up as little info about yourself as you can
2) Book a short(er) date - 30 min?
3) Don't hand over the money immediately, and don't put yourself in a position where she can take the money and run. Put down the envelope, but try to stay between her and the door - or don't even hand it over til she's taken off some clothes.
4) If she is NOT the girl in the pics but is still attractive, make a decision. A lot of guys will just leave, while others will decide she is hot enough to stick around.
5) If she's not the girl in the pics and is not attractive, get the fuck out of there
Last but not least, there's always the possibility of the "boyfriend" banging on the door. Don't wait for it to happen to start making a plan. If you can handle yourself and don't mind an altercation, then be prepared to disarm him and bust his skull the minute he arrives. That's my choice

But if you are not built for that, or can't risk cops showing up, legal troubles, etc - then be prepared to walk away without your money and chalk it up to experience. These guys do NOT want any legal troubles either, and it is VERY unlikely that they will physically attack you unless they have to - they just want to intimidate you and take your money.
Oh, by the way, don't carry your wallet or any extra money into the room.