My specific recommendation is to check with their existing landlord and then contact the applicants with your findings and get clarification about the number and breed of dogs.My general recommendation is for your lease to contain an Accuracy Clause like ours does:"Management has relied upon the information contained in Resident's application to enter into this Agreement.

Of course, the biggest variables, vacancy and maintenance, cannot really be predicted with any accuracy until one has owned the property for a few years, or has a similar property nearby to gauge by.  

Therefore, perhaps these terms just add more accuracy to the picture of current cash flow?

I can't guarantee the accuracy of everything I say, but it's as accurate as far as I understand.Ohio requires "in classroom" courses, while Kentucky lets you take them online.  

I cross referenced a few family and friends addresses for accuracy and all of the info is correct.

It seems that its hit and miss with accuracy in my target neighborhoods but at least its in list form so its seems to be a decent place to start. 

That will get you started and allow you to gather enough information to judge the accuracy and reliability of what various contractors tell you.As an aside, it seems that generally on "This Old House", when they're rehabbing a big house up in New England, the heating update is to a new, very high efficiency (90%) oil heater.

Time will tell as to the accuracy.

How can I improve my accuracy at assessing rehab costs?

We are in central FL, so commenting directly on Miami is not something I can do with any level of accuracy.