You need to find out what your mother owns, and secondly you need to define your vacation needs before we can even begin to advise you here.
If her mf is really only $7000 a year you have something of significant value (but only a small fraction of what mom paid if she bought it all from Wyndham) There are several of us here that would gladly pay you for this ownership or manage it for you taking on the responsibility of paying the maintenance fees and then "renting discounted vacations to you"
Yes, ebay is a good place to watch to help you determine value, but be aware that the large contracts like yours are few and far between, its hard to extrapolate from a 105000 point contract to one as large as yours
Should you take it over? can you use that number of points? do you have $7000 a year for the maintenance fees?, do you have the time to manage this as a business? do you want, or can you afford 3 months of vacation a year? Only you can answer these questions, but dont try until you are armed with the facts. and that will take some time and someone willing to tutor you. I would be happy to do it, but understand I have a personal agenda; I know how to use it and make money with it and as I suggested above, I want to buy it, so my advice will be a little slanted.
Having said that, If you want to chat with someone that knows how Wyndham works, and what this stuff is worth, call me 239-247-0341 (in the AM, I probably wont answer the phone in the afternoon) If I dont answer, leave a message
Wyndham has recently named 3 "preferred" brokers (Im not one of them) that they refer folks to, I can point you to one of them if you like,