In my opinion, the best agents, appraisers, home inspectors, contractors, lenders will utilize AI as a complement towards their existing businesses to spur greater growth and operational efficiencies.

Evaluate forming an LLC to protect both parties and outline everything in an operating agreement.

Although he is a banker, he thinks having the ability to operate as a broker and place loans with 30+ other lenders, in addition to his bank, is the "best setup."

You can check the NMLS for licensing (some servicers will operate without being properly licensed in that state).  

She's not trying to be an airbnb operator.  

But I’d be amiss if I did not suggest that instead you gain knowledge of the aforementioned 3 foundation by studying for a real estate agent/broker license, and then seek employment with REITs, real estate operating companies, real estate managers, or real estate brokers.  

Build a local team for cleaning and repairs to streamline operations.

If one or more units are vacant, the remaining units often don’t provide enough cash flow to cover expenses, making it harder to meet operating costs.Maintenance costs: A fourplex comes with four times the appliances, plumbing, HVAC systems, and other components to maintain, leading to significantly higher repair and maintenance expenses than single-family homes.If you want to see the detailed calculation, read this BP blog - More Units Doesn’t Mean More Money—Why a Single-Family Home Can Beat a Fourplex.Resale value: Multi-family properties have a limited buyer pool—mainly investors—who base their offers on CAP rates.

They look and operate fine and the cost to replace is minimal.

So I think the operative wird is balance.Note - Most of my career in Construction was spent working for exremely wealthy people that you speak of. ($12 mm dollar houses and all that....)