So if there are other factors, 6% could very well be what you are likely to get right now.

Is it based on the rent or cost of property or density or the developments in that neighborhood? 

That said there are always underlying factors that make markets or environments better than other times.  

Along with learning and researching, another yuuuge factor for OOSI is having 'boots on the ground'...perhaps the biggest factor.

As Joe mentioned above your age is going to be a huge factor to creating generational wealth as your investments will have more time to compound. 

Our real estate investments factor into our retirement plan and are not being used to support our living expenses at this time.

Other factors are the price of the next home, how long you intend to live there and how much it will cost to rehab.

The unit is now completely paid off.In the last year or so, several issues with building have been surfacing due to long-term neglect of previous management companies and the original developer/renovator (in 2006).

$1500 would cover mortgage, PMI, insurance, and all the other fees/calculations rentals need to factor in?

3- If there is a determinable factor for the difference between the three above descriptions, how do most Make Ready companies charge for them?