The Simpsons S09E09 - Realty Bites

The Simpsons (1989)
S09E09 Realty Bites
Episode Overview
After Marge earns her real estate license, she discovers how to highlight the positive aspects of the homes she's marketing. However, when the Flanders decide to purchase the infamous Murder House, she comes to the difficult realization that she must be honest about its dark history.