There are many other factors that you can pull into the software that Zillow provides for free (zillow.com/research/data/).  

They also have a program called "Veteran Fast Launch Initiative" where they offer free software, services, and mentoring to veterans and their families who are starting small businesses. 

Hello BiggerPocket Family,Im looking for the best software or website to use to obtain the most accurate information on owner.

For a day job I'm a software engineer and I live / work in DC. 

From General maintenance, tractor work, bookkeeping and business software tailored to our needs.I have recently taken a more hands on approach with the office complex as the former manager was not doing a great job.

I got his name and email and put him in Constant Contact ( the marketing software I use to send properties out once I get them under contract) under the file I created for Lake County buyers.

I currently work for Rent Manager Property Management Software.

I graduated from Virginia Tech three years ago (I'm a youngin) with a degree in Computer Engineering, and have worked as a software engineer since then.

Charges & Term as follow:9% of rent collected ( average rent in the subject property area $650-$750)0%/no fee for vacant property24/7 serviceonline property management software$100 setup fee per property12 month commitment.  

If she is working for a well-known and large broker as you say then they should have access to software that finds expired and FSBO's without much effort.