Is there one that is concise yet comprehensive?  

@Chris DawsonWhat a great and comprehensive list.

Ive found "721199 -All other Traveler accommodations (SIC 7011)" to work under the short term rental area as well as the "531110 -Lessors of residential buildings" to also fit.

Don't rent to or make special accommodations for family members, especially when you don't trust them in the first place.Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Ensure that your cash flow needs are met, and you have a diversified income stream to support your retirement lifestyle.In conclusion, your decision should be based on a comprehensive analysis of your financial goals, risk tolerance, and market research.

Beware in 4 stories and above in residential the building code requires an elevator that will accommodate a stretcher.

.- Use cost segregation studies to expedite depreciation of your properties to offset large income gains.Entity Structure- Choose appropriate legal structure (LLC, partnership, or S corporation) with consideration for different tax implications.Tax Credits- Explore available credits, like energy-efficient or historic rehabilitation credits.Qualified Business Income (QBI) Deduction- Check eligibility for QBI deduction, providing up to a 20% deduction on qualified business income.Record Keeping- Keep accurate and organized records for tax compliance and audits.State and Local Taxes- Consider varying state and local tax implications, including property and income tax rates.Tax Planning- Engage in proactive tax planning, consulting with professionals for a comprehensive strategy.Tax Changes- Stay informed about changes in federal, state, and local tax laws affecting real estate investments.Remember to consult a real estate tax professional for personalized advice based on your specific situation.

And in fact, it still persists in the comprehensive and community plans I am seeing today; where's the investor's action?

This can provide liquidity for your next investment or accommodate potential relocations.No Residency Requirement: Unlike house hacking, fix and flips don't require you to live in the property, allowing you more flexibility.However, keep in mind the challenges and risks associated with fix and flips:Market Analysis: Successful fix and flips require a good understanding of the local market.

@Jason O.I've rented to over 700 students (under and grad) and I understand the market well.To do it successfully: time it with the academic calendarSept to May: flat price including utilities and furniture for max revenue, can include a cleaning service to keep an eye on the rental.May to Aug: depends on your city density and the amount of summer classes, increase the price to accommodate the demand or decrease it accordingly.