"DO I DO ANYTHING ON MY RETURN."
The basis of the house is stepped up to the fair market value as of the date of death of your mother, provided the house was included in her gross estate. The difference between that basis and your sales price (less expenses) would be the gain (or loss) on the transaction.
Note that you will have to report the sale since, I presume, you will receive (or did receive) a 1099-S.
I am sorry for your loss.
