As much as I want to be harsh (and both the Mrs and I would happily just chuck 95% of it) there is a concern that this could have a detrimental effect on the mental well being of the person we’re doing it for (armchair psychiatry at it’s best)
Personally I’m of the mind that while the initial reaction will result in at best me no longer being the favourite son-in-law – eventually she will come to realise that it was for the best and a necessary step.
Having spoken more about this with colleagues and the wife I’m toying with stealthily photographing and boxing up the contents of the spare room and garage and then seeing
a) when/if it’s noticed
b) how these actions are taken
This would be easy enough to revert to how it was if all hell breaks loose and if it’s accepted then we can possibly move on with more of the same.
I just want to rent it out and profit help her move on with her life