During the process I realized that I may have purchased a house that is above the current market demand and I will not get the type of tenants I want for the rent that I need; chalk that up to experience.

That would usually tell you what's in demand or what would sell/rent easier.  

There is definitely room for growth and development around if the demand increases.Hope this helps!

This is appealing because we KNOW the neighborhood, we KNOW the market and the demand.  

Installing Granite counters will not only up the value of the home but demand a higher rent value.   

My suggestion would be to go to a few real estate clubs in your area, speak to some in the business of lending and flipping, and get a sense of the demand.

Interest accrues but is generally disallowed after the notice of demand is made as that begins the process of foreclosure and ends past collection attempts in servicing the note. 

My houses are in a small population rural area, where there is rough equilibrium between supply and demand.  

Who knows how reliable they were before, but if they've gotten comfortable living rent free, my guess is you'll have some hurdles with them, and perhaps some demands for repairs.

Rentals in this area seems to have stabilized and with SFH prices going up, there should continue to be rental demands.