I am not able to take equity out of my condo because it is currently on the blacklist due to HOA fixing the roofing and a Fannie Mae rule stating, if more then 50% of the condos in that community are owned by investors, I may not be able to refi.

An HOA can easily restrict someone trying that strategy. 

Solar panels may qualify for the 30% federal energy credit, and advertising expenses, like adding your company’s logo, are deductible.However, Section 280A restricts deductions for any dwelling unit used as a residence for more than 14 days annually, even if partially used for business.

Tax-Exempt Bonds: Tribes can issue tax-exempt bonds for certain types of developments, reducing financing costs.Challenges: Projects often need to be structured as joint ventures or leases with the tribe, and compliance with tribal laws and federal rules is critical.

They seem to either go one way or another, NO investors with strict HOA rules, or full force on investors. 

I'm not going to download it for you from my phone.https://www.cccba.org/article/flip-or-flop-disclosure-rules-...I've read many of your posts and am aware that you feel that you can decide when you want a permit or not.

I’m curious: are others who house hack buying homes they can just barely afford, or are you sticking closer to the ~30% housing rule and using house hacking income as an added bonus?

Legal Implications and RisksThere are a few legal and procedural risks to be aware of:Title and Zoning Issues: Confirm there are no restrictions tied to the property.

Maybe that area has a certain special restriction of which your architect is aware that I am not privvy to.

Since you’re considering converting the upper unit into a short-term rental, you may also want to implement strict rules around smoking or strong odors in your house rules to avoid future issues.