But I am receiving about 3-6 calls a day on the yard sign, and usually at least one of those is interested after hearing the automated voicemail with the details.So my question is this, how do I keep track of the interested prospects as they call?

I'm all about buy and hold, so yes, I think you're on the right track for sure!

I keep track of the reserves to know that the money is there when needed. 

(By the way, I recommend using Podio to keep track of all this.

Life is much easier when you have a good track record of making money and paying your bills

Probate filings are public record, so you can usually track down related property through the tax record and contact the parties involved, preferably family members instead of attorneys.  

Sounds like you are on the right track.  

"Evaluations" are not a metric that I track.  

Anything additional that AirBNB brings in - consider it gravy, but do NOT rely on it as the default income source, particularly in your first year.Unless you have a  track record of successfully hitting vacation rental projections over the fence consistently - I would not recommend running your numbers assuming that you'll book out every single day in a month with the exception of 7 days vacancy.

I will start saving the emails for reference and try to keep track of whom I vote for somehow until you can hopefully get it automated down the road.Thanks again for all you do for us here on BP and your team as well.