Cost to build today would be prohibitively expensive for the return, especially for a non-experienced developer.

Pitching prohibited. 

In my area electricity is prohibitively expensive so mini splits are out of the question.

I highly doubt your lease prohibits tenants from testing for radon.

Every lease starting 1/1/2025 to have boldface lettering in 12 point font stating the following:EVERY TENANT IS ENTITLED TO SAFE AND HEALTHY HOUSING UNDER COLORADO'S WARRANTY OF HABITABILITY AND THAT A LANDLORD IS PROHIBITED BY LAW FROM RETALIATING AGAINST A TENANT IN ANY MANNER FOR REPORTING UNSAFE CONDITIONS IN THE TENANT'S RESIDENTIAL PREMISES, REQUESTING REPAIRS, OR SEEKING TO ENJOY THE TENANT'S RIGHT TO SAFE AND HEALTHY HOUSING.    2. 

Coaching/mentoring programs can be cost prohibitive and have a really low ROI vs buying a solid property in a solid neighborhood and learning as you go.

Got this note from VRBO today:Dear Partner, We are writing to inform you that effective July 1, 2024, California Assembly Bill 537 will prohibit advertising, displaying or offering a rate that does not include all fees or charges required to stay at a short-term lodging (except taxes and fees imposed by a government on the stay).

Hello everyone, I have a question about the new law that prohibits obtaining a Trust Deed before 15 days.

I concur with Brian that the transaction you describe would be prohibited.

In no state, not even the left coast, is an agent prohibited from buying/selling/rehabbing/developing for themselves.