Again several factors at play but just providing information based on your criteria.

Problem was it's a common perk for Chinese restaurants to provide lower paid staff with room and board, and without the upstairs apartment, renting an apartment in nearby towns for staff is a problem with rooming house regulations beside a major expense.

All these are great investing routes to take - if you were to go the traditional residential rental route, these often offer more stable cash flow, while Section 8 properties can provide guaranteed rent, though with some additional regulations.

Provide details and supporting documentation.

Be sure to check out the free tools BP provides to help analyze deals you may have and also market insights.

can you provide the #'s

Quote from @Nelson Badillo: In my experience, HUD requires you to provide at least three comparable properties to justify your rent.

You can use the 1031 to sell a larger unit that provides better cash flow while minimizing active management.You can either try to cluster those sales together so they close in a way that lets your replacement property be listed on each 45 day period and you close on it within 180 days of the first sale (the first exchange that will expire).Or you could do something like a reverse exchange where your Qi purchases the new property and holds it for you for up to 180 days while you sell all of your properties. 

Do I need the seller to provide me with the mortgage documents and have a lawyer review?

Lets go over your questions one by one and provide some general thoughts based on your goals1.