Line of credit question

[Arcinio Arauz]

A friend of mine is successor trustee of a trust with ver  a nice home. The trustee (his mother) passed away. We found that the home was paid off however, his mother took out a line of credit using the house as a collateral. She was a heavy gambler and evedently the line of credit was never paid off before she passed. It's been since 2012 that the line of credit hasn't been paid at all. 

I was wondering. Does this type LOC work the same as mortgage....will Bank of America forclose? Someone told me that ey they would just tag a lien to the property. My friend wants to keep the house but B of A wants 25k upfront to bring loan current. Should we worry about bank taking the house?