Your research is incomplete. In order to be self proving, a georgia will needs two witnesses and also needs to be notarized. Be very wary of online wills. They are notoriously inadequate when being probated. A will should not be recorded, unless you want the world to know in advance what you have and how you want it dispersed.
Estate planning is not the place to pinch pennies. A well written will save you respect hundreds if not thousands of dollars
You CAN sue, but unless the hotel was somehow negligent, as in having a hazardous situation involving the pavement that that should have known/done something about, don't expect to win.
Riding a ripstick involves some inherent risk that you/your child assume by using the device in question.
Don't expect the hotel or their insurance to pick up the tap simply because their was "something on the pavement."
First off, it's not "if," it's "when." Second, his will has ZERO effect until he dies. Third, "they" can only charge you rent if they own the house or have been given authority to manage the property on behalf of the owner. Fourth, if the will says the house is yours when he dies, and if he doesn't change the will before he dies, AND if there are no successful challenges to the will's authenticity when it is offered for probate, then the house will be yours. Fifth, if you are in the house...
Six years is a long time to pass for a judge to re-open a judgment. I have not heard of them ever going back that far. However, if there was not good notice of the suit, you may be able to get the judge to set that judgment aside (i.e. void it). Of course, you'd have to prove conclusively that you never received notice. Station orders would be most helpful in that regard.
Definitely call an attorney.
Sonari on number two is much more likely. Deeding the property over to you will not relieve her of her obligation to pay the debt. that will only occur when the new mortgage in her name is paid off.
she can add you to title along with her immediately though.
I have been doing this kind of thing for 13 years with clients. call me if you have any questions.