I'm thinking this is more of a legal question that might best be answered by the attorney that
your HOA uses to enforce it's C&Rs. If a lien is needing to be put in place, it will need to be placed
against who ever is the current owner on the deed though. I think your attorney would agree that
until that person actually transfers the deed to the bank, that is creating a lien of it's own through
the reverse mortgage, the bank is not a party that has any responsibility to the HOA.
I hope this helps a little.