Wanting to buy properties to rent

[Jeremy Collins]

My partner and I are looking at buying a couple of houses to rent out, we have been told about Notes, however we do not know how they work or if they really do work.  We would write the note and pay the owner kind of like a contract deal, but we have been told that it is nothing like a contract. Can someone elaborate this concept for me. And maybe if Notes do not work how else to do this.