How to do due diligence on buying mortgage notes?

[Ivan Lai]

Hi, I'm trying to start investing in non-performing mortgage notes in hopes of finding notes where I can evict homeowners and flip the house.  What's the best way to do research on what other loans have the property as collateral?  If I'm buying 2nd position loans, how do I find the info of 1st position note owner?  Thanks for your help!