Finding Tax Lien and Delinquent Properties in Maryland

[Brittnie Stewart]

I am trying to build my contact list for my yellow letters.

Does anyone know how to get a list of properties with tax liens, delinquent taxes, and tax sale properties that did not sell in auction?

As well, how can I get a list of probate properties?

I'm Maryland, so I am looking for all surrounding cities, Baltimore city and county, as well as Howard, Montgomery, PG, and Carroll counties.