On any user who has a "public" profile, there will be a section called "Statistics", and within the statistics there is a "Last Active" metric.

This is what really matters, because once you understand the metrics, you'll know that for every dollar you spend on marketing, you're making $3 profit or whatever.  

It is a game of metrics.

Not to mess with their success metrics ... they probably have a house under contract so I can see the property and increase my wholesaler network.

It really depends on the market - cost per deal is much higher in LA, Phoenix, etc. as you would expect.To throw a range out there - it can easily cost $500 to $2,000 in marketing to get a deal.Here's a way to back into some meaningful metrics for you:>> Use 1 deal in 20 leads as your basis.

Below are the details on response rate:Sent Letters: 723Responses: 33Response Rate: 4.56% (Not including @Brant Richardson )Cost / Incoming Call :  $18I don't find cost / incoming call to be a very representative metric, because so many of them were just tire kickers.  

I like these metrics... one can retail flip with these metrics and a rental should appreciate very nicely over time.. and not get beat up.Cheap is were you find it. 

You and your metrics know.

I tryed using ListSource, but I'm not entirely sure what cross metrics would identify a motivated seller, and at a minimum of $50 a pop, it can become expensive to tinker.

Without conversions metrics you will have no idea what is the driving force behind those leads you're getting.