It's not as cut and dry as you would like it to be. The following is literally about a "contract signed by the infirm":
>After David learned of the contract, he explained to Evans that his mother had dementia and tried to cancel the sale. Instead of walking away, Evans dug in, recording a notice on the property’s title that essentially prevented a sale to anyone else, which forced the Casanova family into a years-long battle to keep the home. Along the way, Evans disputed that Casanova showed signs of impairment during their interactions.
In general, it seems like a huge problem that people who probably are not capable of signing contracts can in fact sign them and have no real recourse for dealing with it. Seems like a good spot for a safety net.
The lesson here is to marry someone much younger so you have someone to take care of you in your twilight years. Also good to have lots of kids and raise them right. Statistically at least one of them will be able to take care of you.
The buyer has the signature on paper and can proceed with taking the house.
The person who just sold their house _could_ contest it in court... except that they're not mentally competent so by definition they won't be able to mount a defense (i.e., realize that they just got scammed, hire a lawyer, put together a strategy, etc, etc). Brilliant!
If the elderly, mentally incompetent person has _someone_else_ in their life who notices this early and jumps in to clock a lot of hours to stop this from happening, then sure - everything will be fine.
If not, well, the bad guys win.
Idk if it warrants a story beyond “existing laws not being upheld in some cases”, meaning I don’t know how much these cases apply to the whole market or most courts, but it looks like there are a fair number of seriously messed up contract scams getting through in this industry.
Yes, that's why the houses are considered stolen.