They typically have access by either dirt road or trail, with people carrying in all the required supplies for there stay (both winter and summer). 

If the issue is purely cosmetic, then hell no.....not a chance.You are supplying a livable unit for them....on the VOUCHER program....you aren't building them their dream home.Do this and prepare for the flood gates of other things they want to upgrade to make the place nicer....Unless there is a safety or health issue, they can pound sand or move somewhere else....at which time if you want to upgrade the floors and up the rent, then go for it....DO NOT DO IT....

Most multi-plexes (2-4 units) are in C-D neighborhoods and are older, built before 1980, and in limited supply compared to SFR and Condo/Townhome.

When I think about Wholesaling it seems like a good opportunity on the front end (more possible supply with people moving out of state) but it hurts the back end if there isn't new demand coming into the state to purchase these homes (which makes it tougher for potential all cash buyers)

In most many markets the increase in supplies will be met with longer term tenants and better rent. 

I think every real estate investor wants to be a full time guy because this is very enjoyable, there are lot of pros to being full time, here are some of the cons you should address 1) Finding the deals - As long as you are a passive investor if the math works even a 100$ cash flow a month is okay on the side, you can buy your properties from MLS but when u are a full time investor you need a lot more cash flow and lot better deals.2) Sourcing Finance - Banks look for W2s when you ask for money, you should be lot more creative and risky as a full time professional to source funding.3) Market Cycle and Current Market - Markets will cycle and as much as I know most areas are turning into sellers market with low supplies, how do you tackle that?

We could share expenses such as cleaning company, property management, supplies, etc. 

Most reputable turnkey providers have more demand for their product then they have supply.

Unfortunately though, the supply appears to be rather limited in the Jacksonville area and most of these properties are located in what appear to be questionable neighborhoods - class D. 

“Rents will plateau in another year,” he said, adding, “Especially if we focus on supply.”