Upon a number of factors. For instance;

A) Does she have a fixed incall and is meeting you halfway for your convenience?  If so, she may consider this an outcall and expect you to provide the room.

B) Even if she works out of hotels, due to the travel time, she may want you to; a) pay for the hotel or b) compensate her for the travel time.  

C) If this is an area she sometimes or routinely travels to and she plans on booking other appointments in the location you are meeting at, she may let you know that she will be responsible for the room.

Consider this.  If a lady travels two hours to see you for a one hour appointment, she is basically not available to other clients for 5 hours (travel to and from and length of appointment).  If she then incurs the cost of the room, and you are her only client, she is now working for a fraction of what she normally makes.

Its better to be "up front" and discuss all this in advance lest you have a misunderstanding about the donation and other financial matters.  Also, depending on the lady, if you are paying for the room, you may want to talk to her and see if she objects to a modest room.  

Good luck!

I would assume, unless she will be using the room for others, then this is really an outcall and the location is your responsibilty. If she will be using the room as an incall for others I would assume she pays. My advice unless you are sure you should expect to pay for it.

Just ask her if she already has a room or if she would like you to book one.  If she has a room she is either passing the cost along in her rate or absorbing it.  On the outside chance that she asks you to cover the room after you get there you should have enough extra cash to do so.

There is nothing wrong with working these things out in advance. You don't want to book in a cheap motel. You can find three star rooms on priceline for the same price you would pay for a Motel 6 most of the time.

She is making the effort to meet you in a convenient location.  You should both agree on a facility but you can ask her to obtain the room & offer to cover the cost.  
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