I see no issue at all for seeing a girl at the hotel. It's who you pick which is biggest issue!
Its your room, it not like your an escort who is using the hotel for bookings, as far as I would be concerned, she is your guest, and what are they going to say
"sorry she cant go up to your room, as she is a known escort" and you reply she my wife infact
So I don't think there anything to be worried about, but like what cb76 say, think its bestif the escort is properly attired for the hotel, so it dosnt draw attention to your selfs