It seems that these owners are making these payments somehow. If you have capital, you can maintain the fictional values of your assets (these mortgages) by not

It seems that these owners are making these payments somehow. If you have capital, you can maintain the fictional values of your assets (these mortgages) by not accepting rent. This can happen if these owners are big corps/funds and not a regular retiree that needs the rent. Question is, if they are using these fictional valuations to maintain some other sort of financial schemes that helps them pay the monthly. The whole thing will be a pyramid scheme awaiting collapse.