ribit ...
2) In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you.
3) And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also.
4) And whither I go ye know, and the way ye know.
5) Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way?
6) Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
John 14: 2 - 6
Heaven is a big place ... I'm sure Jesus can find a mansion for your mother-in-law and sister-in-law that is far, far away from yours, instead of putting them in an "In-Law Suite" attached to yours.

The essential American soul is hard, isolate, stoic, and a killer. It has never yet melted. ~ D.H. Lawrence