Foreclosure lien questions, PA

[Nina Zou]

Questions about Chester county foreclosure DD. 

Couple of questions: 

1. First mortgage started foreclosure, but it has couple of municipal liens on it. Will this be wipe out after the sheriff sale?

2. Current owner divorced. How do I check if he owes child support? Chester county ask for the person's SSN to check if he owes child support, But there is no way I can get that information. Do I need to be concerned about if he owes the child support or will be be wipe out after sheriff sale?