If you operate under an LLC or other business structure, are there tax implications or requirements I should be aware of when paying myself?

Same thing with Clayton Morris and any other well known operator really. 

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

While I don't believe that you need a full blown business plan, strict operational budget, timeline, scrum board, etc...

Investor focused realtors & Property managers are going to be your biggest asset since they'll be finding your deals & managing the day to day operations for you.

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.

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.

If you do decide to work with them, you could set up a clear partnership where they’re equity partners and you handle the management and operations.

Look into contacting some builders that operate larger scale in your area.

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.