Generally speaking, a mortgage is a loan obtained to purchase real estate. The "mortgage" itself is a lien (a legal claim) on the home or property that secures the promise to pay the debt. All mortgages have two features in common: principal and interest.
If you need to hacksaw through a fastened pipe or rod, but the space above is cramped, try this: Remove the hacksaw’s blade, straddle the pipe with its frame from below, then reinstall the blade upside down. The teeth of the saw will cut through the pipe from the opposite side. In many cases this trick will allow you to complete a cut that would be otherwise impossible.