I too love my In-laws. I just lost my last parent back in November. These people have been better than my real family.
I play golf with my 84 year old FIL at least once a month. My MIL is wonderful and I couldn't ask for more.
Point is, I feel ya.
Do what BD says and regardless, you will fair better.
M 53 W 54, M since 98 D15, D19 8/2013 discovered EA, W maintained contact with OM until 10/14 7/2/17 W said she wanted S, 7/25/17 moved out of MBR 12/17 W says moving out 5/18, W still in home.