I will look into the trust solution. 

Don't get fooled by these comments - the agents must educate their clients and not push you to look for solutions with Zillow. 

I did contact them via email and am working through a solution, but it always feels like a job with them - goes against the 'hands-off' model.

Monitored the house, and found dogs locked up inside defecating and urinating for what appeared to be many days.

From what I can see, you've got to manually monitor legal notices in the Times/Post/County Papers to compile auction notices, then track the sale status (date, cancellation, postponements,etc) on the default attorney/trustee website.  

I think working with other investors is a viable solution at your age.

For the calls coming in: the goal is to provide a solution for the customer.

These have their own searchable values that can only help the SEO ranking of your website.Additionally, you want to sign up for Google Analytics to track page usage with your visitors, & Google Webmaster tools to submit url's for crawl requests, monitor any webpage errors (301/302/403/404), & most importantly, just how your site is performing with Google SEO.  

Having said that, the number of possible solutions is relatively small and unless you have some unique set of circumstances (hence the need for a SME).

Essentially, there isn't an easy or inexpensive solution for sourcing phone numbers, and anybody offering a service to you for a low price has bad data.