The two richest counties in the nation are Fairfax County and Loudoun County Virginia
A good friend of mine is from Loudoun Co and his parents still live there. I am about 10 miles NW of downtown ATL in a 2400 sq foot upgraded house that is worth $315k realistically. He said if the Wizard of Oz could magically move it to Loudoun Co it would be worth 1.8-2.0M. I'm like, damn, son, make that happen.
OP has a good thing going, I spent roughly 3 hours this AM "winterizing" my highest value property that is in an excellent neighborhood, not much of a fan of 9 degrees and a crawl space. After all expenses it net cash flows $625/month and have raised the rent from $1200 to $1400/ month over 3 years to the same tenant who just re-upped for 2 more years. Plus I sold off the adjacent lot that came with the house for $120k and have built up $20k cash off rents from the property and that is just one property, I have two commercial props that require about zero work and sold another residential property.
There is money to be made, but like JT and I always agreed you have to get a very good value upfront as otherwise I don't like the potential lack of liquidity nor total return prospects and wouldn't want to be locked in a bad deal. It's not a reach to consider that the expected return of the stock market at current valuations likely isn't goin to blow the pants off anyone, and bond yields suck, so good deals on rental RE can be attractive and based upon what equity REITs are valued at likely much less risky if one does their homework and makes rational decisions. I'm at my limit with RE exposure at present.
YMMV, not responsible for any bad decisions, this is not investment advice, etc.