An extremely well reviewed provider, with blurred face pictures, I'm trying to make arrangements with told me she no longer meets at a particular hotel or hotel brand.  She said twice she was escorted out after her date met her downstairs to take her up.  

Maybe because it's never happen to me, but I have a time believing that once you meet your date, that security would break you guys up and escort her out. And If I was you, I wouldn't freak out too much so you can relax.
Now I don't know if this would work, but this is what I would do if she is banned by the hotel where I'm at. I would have her meet me at the valet and I we would walk together to our room. If security came by, I'd assure them that she's my guest and I will be responsible for her. Don't know if ths would work but I feel I can sell it, after all I don't look like your typical "monger"...lol

When a lady has been banned from a casino they are banned from all of the hotels within that brand. Sometimes they get banned for solicitation, other times they were being drunk and unruly. I make a habit of coming in one door and out the other. I don't hang out afterwards unless I have dinner reservations and I am never seen talking to multiple men by security.  

The escort in question clearly had a problem in that hotel before. Likely a major scene where she was identified as a troublemaker. They’ve obviously added her pictures to their database and security is on the lookout for her. Before I bought a home in Vegas I probably brought 25+ escorts past security to my room and never had an issue. You’ll be fine as long as your companion doesn’t have a history of problems at your hotel.

Maybe I'll just slip her a room key at dinner.  She'll be able to present it to the guard and appear to be a guest.

I’ve meet a well know provider who wouldn’t goto x hotel because she had an incident with them. She was upfront about it. Since I wasn’t staying at that hotel I didn’t inquire why. You roll the dice with any of these meetings lol.