OK, while others here have provided good suggestions you are the first to ask specific and relevant questions.
What is the hotel using now and why does it want to replace it?
They are using a third party provider that manages the entire system. This system includes a paywall that they no longer feel is advantageous to their business. Additionally, they are bringing in Comcast to provide telephone and television services as well.
What is a "proprietary encasement," and who put the APs there? Are you expected to put new APs in the same encasements? What will happen to the old APs?
The existing APs are located in individual bottom floor rooms in two story buildings. They are placed in boxes sealed with tamperproof bolts. The only lines in are what appears to be a standard telephone line and a power cable. There is also a telephone line coming out connected to the telephone. Presumably, the company who manages the current system will take the old APs. The existing networking equipment is also protected from closer inspection though does connect through standard telephone punchdown blocks.
You say the hotel doesn't want to lay any new cable. That might just be too bad, but it also seems to imply that there is already some cable somewhere. Why not use the existing cable? You say the APs "seem to be connected by telephone wire," but you don't sound sure. Perhaps it's just long strings with tin cans at each end? Is there any way to find out?
If new cabling is required then so be it. The owners would just rather it be kept to the absolute minimum necessary.
If the existing network is as strange and nonstandard as you make it sound, why is that? Was there something unique to the property that made that the best solution, and is it smart for you to ignore that?
I think the primary reason again was the desire to avoid new wiring.
Before you begin, have you verified that the hotel's contract with Comcast actually allows it to offer Internet access to the public?
Yes
You say the hotel wants to provide the network for free, so there's no need for any billing management system. Are you then comfortable with the idea that there will be no logging of the network at all, and no record of who might have used it and when? Is BitTorrent OK? How about botnets?
The ability to centrally manage the APs is a strong plus. Additionally, logging is not highly critical but the ability to ensure that bandwidth is distributed as equitably as possible would be nice. Yes, I would like the ability to restrict botnets and other undesirable traffic.
If the patrons aren't expected to pay for the network, can they expect it to exist at all? That is, do you have a plan to test and verify that every room will have equal access to the network, and that a guest who came last summer won't return this summer and find out that the hotel doesn't seem to have WiFi anymore (when in fact it's just their new room)?
It should be available throughout. I do plan to test signal strength from every room.
Are you aware of FCC regulations regarding signal strength of your antennas, for those portions of the property that might be natural dark spots?
Yes, I will add APs as needed
Does your task include just replacing the network or does it also include managing the network, making repairs, etc.? How much time do you plan to devote to that?
I will be managing the system also. I do not wish to devote a tremendous amount of time to managing this system once it is in place. A central management console will be highly valued.