"Those obligations go beyond merely letting the tenant use the property, and they're expensive. I can't agree with any law that imposes those obligations on anyone without their consent."
The bank, by lending to someone who intends to use the property as an income generating property, immediately assumes that responsibility upon foreclosure and, by extension, has agreed to the conditions that come with it.
Banks can, if they so choose, specifically exclude use of the property as a rental property in the loan agreement.
And, by their very nature, banks aren't "anyone." They are a THING. A corporate entity.
Through this entire conversation you've constantly harped on the "rights" of the corporate entity.
You've been asked, and have so far failed/refused to answer, what drawbacks or potential catastrophic and business ruining consequences might occur from a bank having a foreclosed property that is actually generating income against the lien by retaining the renters in the property.
Seems to me that cutting off ALL revenue flow by immediately evicting any tenants is by far the stupider move.
But, given the incredible "planning and foresight" that lending institutions have used over these past few years, I not at all surprised.