Tax Lien, Medicaid Lien, Credit Card Lien

[Adam Hays]

I found an absentee owner property today while driving for dollars. I managed to make contact with one of the owners and its complicated. 

In a nutshell: 
mom signs a beneficiary deed in 1995 listing her 3 kids
mom signs new beneficiary deed to just her two sons  in 1999
mom signs POA listing both sons and requires joint approval of any actions

The son I made contact with lives in Florida andsays their is no mortgage on the property but there are liens. He is cooperative and hates that the house is sitting empty as an eye sore for the neighbor. Its the other brother that is the problem. He says the house goes to auction for tax liens in a few months. Liens being about 6K in property tax, unknown amount for Medicaid, and 30K credit card lien in brothers name.

my questions:

1. Will the junior liens be wiped out by the tax lien sale?
----if not ------
2. Are credit card liens easily negotiated?

3. How do you find more info on Medicaid lein?