这个解释的还比较详细,关于lien holder的position问题
Foreclosure Positions Between Lenders
It doesn't matter if you take out a second mortgage to help buy the home or
if you have secured a home equity loan after the fact. The second lender
will always be in second position, unless the first is willing to
subordinate. Ordinarily, a mortgage lender who is in first position will not
subordinate the position.
First in position is first in the right to collect from foreclosure
proceedings. This means when a Notice of