Granted they were purchased Dec 2021 (shortly before the rates started to climb).There is more education material available today than ever.  

really depends on which materials you're looking to go with .

So to say it improves returns in any way shape or form is materially untrue.

I recommend a structural engineer further evaluate and make recommendations related to this observation” And regarding this make-shift supports: “Temporary posts exist in the basement that should be considered for replacement with a permanent support system.A temporary post is noted as a support to the ground that does not appear to be resting on a footer.This temporary support post is holding up a metal beam supporting a large portion of the house.This is a structural concern that should be reviewed by a qualified engineer/contractor”I will include a couple pics as well 

Materials are more like $185 a sq .

We build cost plus, so our fee is set and the client/owner is responsible for the labor/material costs during the build whether they end up being lower, higher or right at the estimate/bid price for the bank.This is really up to him to do. 

Common investment choices include rentals, private placements, tax liens, precious metals, crypto, private businesses, etc. 

Do you have any recommendations on courses, books, or materials to learn from? 

If you wanted to go hunting with dad you had to be able to gather materials, and start a fire with one match. 

Jon Hi There is so much material available educating on how to properly conduct this process .