I get where you're coming from, but I'd advice against doing that. I'm not giving legal advice, IANAL and all that.
If you make an offer to sell, then it may be seen as a money grab. Even if you didnt even ask for an unreasonable amount. If on the other hand, you made a comment like, I can't afford to give it up, it's my only option financially for a home, then maybe Walmart would make an offer instead.
I'm not saying that Walmart would be right in trying to kick you out, but they could easily throw your entire life earnings, daily, at fucking you over legally. So I'd be stepping real carefully.