Those tenancies typically are still binding on landlord and tenant, such as you have to keep the property in safe and habitable condition and also have to give notice before entering.

I realized I'm not the person who will go into someone's bank account statements and go through line items explaining or understanding their spending habits. 

I also appreciate the benefits that come with not dealing in "habitational" real estate. 

Since I don’t have any experience yet I want to build good habits and thus have a better chance at building great relationships with contractors because I understand that’s an important factor in being a great real estate investor.

You can never remediate the mold enough to satisfy a personal injury lawyer, and in most states you can't sell a mobile home "as is" with the problems you are describing due to the "habitability warranty".

Borrow as much money as possible to buy cashflowing (good) assets   Build wealth-creating habits. 

They follow under three categories of habit safety and market conditions.  It is a lot of work- if they don’t know what you’re doing.

I acquired a home once and put a year into making it habitable again also but didn't add the value percentage you achieved. 

Choose carefully so that you don't spend more on making it habitable, than the property would be worth after the repair.

Conventional can work, but remember that the bank will be hesitant to lend if the property doesn't look habitable.