One thing to consider for the stucco front - I imagine you can do a different color / same intensity, but can you safely use a more intense (darker) color than what is on there currently?

If you need lots of different numbers to a/b test go for callfire

There are many factors that will determine your ROI, and you will have a more management intensive investment.So if you have the capacity to create leverage and the tolerance for risk along with a skill for evaluating property you can generally create a much better return owning property.

The ERMI(mold test) was off the charts...

Have your accountant drug tested.

They sent pictures of a home mold test they did as well as pictures of mold growing on his mattress (his mattress was not on a frame, it sat directly on the floor which got wet during the water intrusion).

You can always tell your tenants that your are coming to do a preventative maintenance check (ie. change/check a/c filter, test smoke detector, etc.) and in reality check out the unit..

I am sure it tests out your patients. 

In New York I plan on doing a 9 day crash  course and taking the test the last day of the course.  

Providing the invoices that proved I hada fire protection company testing the smoke detectors and keeping the eextinguishers charged got me a discount that covers about 2/3 of the cost.