I started talking to the agent and so far have the following info:Tenant is a diagnostics company that its run its collection center @ the property. 

Aside from avoiding full scale D & F neighborhoods, cash flow has been my primary diagnostic measure.3.

One diagnostic that I have seen help people decide this issue: do you do your personal taxes, itemized and handle things like capital gains, credits, etc. ?

I have paid the contractor in full and the insurance will most likely only cover the diagnostics from the technician.

Been in diagnostic lab sales the past 13 years.

Ok, just returned back from rental, the A/C is running but the technician did some diagnostics and said I have to replace evaporator coil and there may be a leak I have to address, net repair charges is $2500, or the new unit is around ~6k (for 4 ton)(:, Didn't expect this is in month-2 of my journey, I am seriously thinking of taking a home warranty and crossing fingers for a month to go by before I call them And since I am planning to keep this rental for a long time, paying $2500 for repair somehow does not make sense Also I did a rookie mistake, I don't have any clause in my tenancy contract for tenant to Pay service fee, I guess it's a lesson learnt for future

Have an MBA and was VP of a Medical Diagnostic Company.

., and Roche Diagnostics, all of which provide stable and high-paying jobs.

All techs are not equal in their diagnostic skill regarding coolant amounts.Silver roofs are cooler than black roofs.White houses are cooler than dark blue houses.Thermal window tint may help (but it has a service life).Maybe your electrical company offers a free energy assessment with a thermal scan (???)

Check the furnace again, diagnostic code shows the error and troubleshooting recommendations.