I would then plan to use this forced equity (since I plan to buy a fixer upper) to invest in another home.I have been constantly reading to househack right into the MFH, but this may take some time for me to acquire the money and purchasing power.

Buy it in cash in name of the LLC to begin with.

We do not suspect foul play because apparently that tenant's relatives have reported to the remaining tenants that the MIA tenant has moved in with another relative (but did not give that MIA tenant's new contact information). 

Buy a plot of land, finance the pre-fab home, and sell the whole package when its complete. thoughts?

It looks like you are not able to get lending because your Debt-to-Income ratio is too high.You should figure out what your DTI ratio is.If you are buying cash-flowing rentals, your rentals should actually be helping you get future loans easier.

I was going to potentially store sensitive information about my clients in their database.

First property: Purchased: 2021Interest: in the 2'sPurchase price: 375,000Estimated value now: 430,000If more information is missed or needed, I'll gladly share!

If it is section 8, i would make sure they at least have some income coming in to be able to afford to eat, clothe, and buy all the other necessities. 

I used the values from the realtor.com website for purchase information and expenses, and the bank of america calculator to estimate closing costs.

@Joshua G Steed I have yet to buy a mobile home at auction but have heard about them.