Rarely do tenants get the opportunity to stick it to their landlords and win out in the end. When this unusual phenomenon occurs, we need to celebrate the moment, as nine times out of ten, the tenant tends to lose. Here, we have a tenant who lived in a small duplex right under, you guess it, their landlady, who was also the neighborhood Karen (a popular combination). Now, Karen decided to sell the entire duplex, but this is not what frustrated the Redditor. In fact, the tenant was overjoyed at…