Here's what *I* would do, not sure how it will align with your own goals/temperament/etc.:
I'd move to a vibrant, mid-sized, and affordable city that has all the amenities I want. A city with at least one good sized university, decent weather, good schools, low crime, a large trauma hospital, some culture, not too conservative/backwards, and that is not dependent on one industry. A military base as suggested by warbirds would be a plus, but I would not want it as the primary/sole "industry" in town. This city would have SFR's with a median price of ~$200k.
I'd buy one of those ~$200k houses for my family to live in, putting 20% ($40k) down and financing the rest since rates are still so historically low.
I would use another $160k as down payment(s) on a couple of duplexes or 4-plexes in good local neighborhoods, and rent them out. I'd probably want to own about $500k in properties, putting $160k down. If no multi-family residences are available, then I'd invest in a couple of single family residences. All the usual "rules" would apply on getting good cash flowing properties. I would only want to own/manage rental properties if they were getting 12%+ return annually on my $160k, net after all expenses and reserves, etc. If that's not available, then I'm not owing rental properties and would just invest all the money in equities/etc. So, I'd be looking to generate about $20,000 + annually as profits, and hoping for about 2-4% average annual appreciation over the long run (if it's higher than that, great). I'd expect to own these properties for 7 years minimally, likely longer.
I'd invest the remaining $100k in a balanced mutual fund or ETF. That would serve as a safety net, plus I wouldn't be interested in owning/managing too many rental properties or being too heavily leveraged in that regard. Since I'm ER'ed, I'd manage the properties myself, seeking good long-term, stable tenants.
Over the years if I was enjoying owning these rental properties, and the area continued to be vibrant and profitable, I'd consider purchasing another and building my real estate empire a-la Arebelspy, who does not believe in real estate empires despite having one.