Most suburban cities have VERY limited lots and most of those are zoned R-1, meaning only a single-unit house can be built.In the City of Detroit, it's cheaper to buy one and rehab than build!

I have a seller who wants to sell a house that is worth roughly $830K. 

I'd second house hacking.

If the house was built in the 50's or earlier than you probably have cast iron pipes.

if you were only going to rent out a portion of the house as an STR that portion would have to be worth more than your exchange as well.

The Yale Law Journal article, "Zoned Out: How Zoning Law Undermines Family Law’s Functional Turn," highlights this issue, noting that while family law has evolved to recognize diverse family structures, zoning laws have lagged behind, potentially hindering innovative housing solutions like co-living.Challenges for Co-Living InvestorsFor real estate investors interested in co-living, these restrictive definitions can lead to:Legal Barriers: Difficulty obtaining permits or approvals for co-living spaces due to non-compliance with traditional family definitions in zoning codes.Operational Challenges: Potential fines or legal disputes arising from housing arrangements that don't conform to local zoning definitions of a household.Market Limitations: Reduced ability to meet the growing demand for affordable, shared housing solutions.Advocacy for ReformThe Bloomberg article, "Why Are Zoning Laws Defining What Constitutes a Family?"

End of that relationship came when owner called us and expected us to go pick up their guy, who's truck broke down, and drive him to the house - and didn't want to pay us anything for this!

Im also interested in starting to invest in housing whether that be flipping, BRRR, etcMy wife, 54, is newly positioned social worker and climbing to what she feels is her max with clients.

I'm curious of the current market demand for student housing and appeal to rental investors.

And that mistake came back to cost me tens of thousands in lost rent and damaged houses.