Pre-foreclosure with good equity

[Ben Huisman]

I found a house that is in pre-foreclosure with good equity.  I have some basic information about the property:

the owner and lender

loan amount

equity in the property

What is the best course of action to take?  Do I contact the lender, or do I contact the owner? What does that process look like?  I am new to this so any information would be greatly appreciated.