Does anyone think that these factors are deal breakers?

It's a cost of doing business and factor it in.

Lots of factors here, some manageable some not so ideal however the numbers seem to work every way I run themI was contacted by the son of a deceased mother who after her death, found out she owned several properties. 

I also spend hours running very comprehensive CMA reports on properties to analyze their list factors, sold factors and the average percentages of their tax assessment value that they are selling for as well.

What is your best recommendation based on wear factor along with the high heat in the summer time? 

Just factor it in.  

Just don't forget to factor in sales expenses and taxes on short-term gains.  

There are many factors that will enable you to do this including how much money you have to put down and how much your property will command in rent.  

Rate is dependent on various factors (e.g. length of loan)

Employment growth, Corporate expansion, Job diversity and wage growth will be several factors that will impact the direction of rents.