Yeah my in-laws were somewhat well off at one point but one of them lost their job two decades ago and emptied their 401k with penalties so they could maintain

Yeah my in-laws were somewhat well off at one point but one of them lost their job two decades ago and emptied their 401k with penalties so they could maintain their standard of living. Last year we bought them a house so the working spouse didn't need to stay employed into their mid 70s. They pay "rent" equivalent to about 25% of the payments we make each month for the mortgage + taxes. I also found out last year that since they pay below-market rates I need to count the rent they do pay as income for taxes but don't benefit from any of the usual landlord tax deductions (e.g. depreciation).