Expenses. FIL passed a few years back. Their home has been rented out for several years with rent income sitting in an account.
My wife and her brother have been fine keeping the house rented and having it as an asset in case of unexpected expenses for their mom. My wife’s sister is chomping at the bit to sell the house and get her share (even thou her mom is still alive). Has definitely caused some conflict.

I anticipate a little drama with my SIL when MIL actually passes. Luckily there is only the house and the rental money to deal with.