Child support lein

[Manuel Gonzalez]

Found a property that has a child  support  lein on it.  He is selling it to me for 10k over what he owes it was passed down to him and his brother  after their  mom passed mortage is still under mom's name I was told . My question is  one of the brothers owes about  20k in child  support  if I buy house  what happens.  I'm thinking that  child support  would  garnish  all his profits or if I buy subject to can the mother owed child support try to make me sell it or does lein follow  brothers thanks 

Also they are behind on payments and I'm thinking that they might  go into foreclosure  I was thinking  about maybe just waiting  and buy it  after it gets foreclosed on but then  im risking  loosing  it to somebody  I'm  open too any ideas how  yall would recommend  me getting property thanks