Yes, you need to report the sale of the home in the other state.
Here is where you enter in TurboTax:
In Income & Expenses, click show more
Scroll to Stocks, Mutual Funds, Bonds, Other and
start
Did you get a 1099-B, click no
Chose the type of investment
Click first box, sale of second home
Enter address, net proceeds and sale date
You will need to apportion the proceeds between you and your siblings.