@ThePlanetGoesOnBeingRound3
You are either someone with adult children who has pushed your way into their home and not taken no for an answer.
OR
You are an adult who has never grown up, and needs to be near really near mommy.
No other explanation to be happy to have your mother living with you.
Have to agree that some mothers of sons are the worst. Horribly possessive and demanding, and think no woman is good enough for their precious son. (Not all, but some...)
Hell would freeze over before I would let my MIL move next door to me ... fuck that.
As has been said, if she is not happy being 5 minutes away, she has plans to be in your life 24/7, in your home, in your business, and in your face.
Be firm, and tell your husband 'no fucking way!'