What to do after purchasing a non performing note?

[Casey York]

I found a property that has been vacant for over 10 years, in a very good neighborhood. Last known occupant went through a divorce and bankruptcy at same time. Paper trail was long but I finally found the current owner of the mortgage. There is a first and second mortgage. The owner of the first mortgage has said they will sell me the note. Not having any luck on the 2nd mortgage note.

If I purchase the 1st, can I foreclose the property and take ownership?

Any help is greatly appreciated.

Thank you!