I just learned about PropertyRadar (https://www.propertyradar.com/) which claims to allow you to "research residential and commercial properties using enhanced public records data."

Great to see you're making the extra effort to enhance your knowledge in REI.

My classmates at Rice Jones School of Business and I are working on a project to study real estate transaction costs and researching the problems For-Sale-By-Owners (FSOB) face.Our goal is to enhance the FSBO experience and discover solutions that maximize equity captured during the sale.If anyone has sold their home FSBO, we would love to do a 10-minute interview.

Textured ceiling has to come down but I already have a source for texture removal that I have used multiple times that I am happy with. 

The depreciation deduction can be enhanced with a cost segregation study that could reduce you tax burden significantly.

Change color of paint, remove popcorn ceiling and apply knockdown texture, New lighting, new fresh white outlets and covers, paint trim and doors white, new quartz or composite countertops and tile backsplash, paint cabinets (white uppers and darker grey tone lower)? 

Some of the experts I enjoy listening to enhance my mindset are MeetKevin (has a youtube channel), Jim Kwik (focuses on enhancing your brain), and Andy Frisella (he has a podcast).

How would I go about using Expired Listings to enhance my real estate investing portfolio as I have a real estate friend who has supplied me with them?

I know radiators with a boiler are considered more efficient, but removing them and their piping would enhance the usability of such a small space.

I'm having a ADU built and need to decide between smooth vs textured walls.