If you buy a house you get a full inspection and check all its points, termites, roof, etc.

It's called a payoff statementif it's a big lender you will not buy the loan as it will take forever, you are better just paying it off. you then can foreclose based on the total balance owed to you which is both loans and any accrued interest. regarding fixing property or selling as is, that really depends and needs to be evaluated on a case by case basis 

As a broker in a wholesale market, I "buy" a loan from a lender at a discount and mark it up for my profit.

Buying a nice place for 250k that's worth 250k is less sexy than having equity from day one. 

You should buy a good book about being a landlord.

I am also looking for guidance on being an agent as I have a few friends and family members looking to buy within the next year.

Based on a quick answer from Perplexity it seems like there would be no issue with you buying the home and collecting passive income, but you may not be allowed to manage it yourself since that is considered active work.

We have one other mobile home park and this property will determine my desire to buy more or sell.

Here's a detailed guide on how to screen applicants: Application Screening Guide

People come here, buy, move away and try to keep the house as a rental.