Forclosures on non performing notes and its process?

[Cameron York]

I know that every situation is different regarding who the borrower is and the foreclosure regulations regarding the location, but I was wondering how often it happens and how the process usually pans out when purchasing a non performing note (whether a failed loan modification or initial purpose for foreclosure) and issuing a foreclosure. Is it painful and is often like pulling teeth? how do bankruptcies affect a foreclosure? how long does it typically take? is it advised?