Earlier quoted context omitted.
another possible remedy would be to find ways to change the conditions of the loan so that building owners can continue to pay off their loan at better rates that match the income they can make from rent.
Then you'll most likely get moral hazard. That is, rather of people acting in their own limits, as responsible business parties, they would instead be encouraged this way to make deals which they know won't be able to carry through, then after getting this metaphorical foot in the door, they'll expect "to change the conditions of the loan", i.e. beneficial intervention on their behalf (and a kind of bait-and-switch).
and isn't investing into a property that they then fail to rent out in a profitable manner also already a failure to act within their own limits?