Raising the existing home would need to be done before any construction on the new home started and the existing home would lose its basement and all mechanicals would have to be moved upstairs.

Personally I just plug the property information on the second tab of my spreadsheet linked above and change the down payment percentage on the first tab of the workbook and everything auto calculates.

On the other hand, in the early 1900s there were over 1000 auto makers and by 1950 just a handful left.

Think of a legal relationship like a relationship with your mechanic. 

What are the unmaintained/older mechanical systems that may need replacement soon,    How are the utilities /heat set up?

I would also require them to set up auto payment with an online system.

I was thinking of taking out an auto loan instead of paying for my car in cash for the purpose of paying off my loan within 6 months and thereby (hopefully) help repair my credit score so that I can be in a better position to take out a loan and invest in RE.

Ideally I could rent that garage out separately as it also is right off the street (perfect for a hobby mechanic shop scenario). 

Aside from mechanics, it's important to know that all IRA/IRS guidelines extend to the LLC as an investment vehicle.

@James Charles I know the mechanics of wholesaling but have never pursued that venture.