Seller A has signed a listing agreement with Broker B. If Seller A sells her property without Broker B's help and owes no commission, what type of listing did she sign?

The correct answer is that Seller A signed an exclusive agency listing. This type of agreement allows the seller to find a buyer on their own without owing a commission to the broker if they successfully complete the sale independently. Under an exclusive agency listing, the broker has the exclusive right to represent the seller, but the seller retains the right to sell the property without incurring any commission costs.

In contrast, an exclusive right to sell listing would obligate the seller to pay a commission regardless of who sells the property, whether it's the broker or the seller themselves. An open listing allows the seller to work with multiple brokers and only pay the commission to the broker who brings forth the buyer, potentially leading to a situation where the seller could sell independently without owing a commission. A net listing, while less common and often considered unethical, involves the broker receiving all amounts over a specified figure the seller desires, making commission arrangements less straightforward.

Thus, the unique element of an exclusive agency listing is that it grants the seller the flexibility to sell without a commission fee if they find a buyer themselves, precisely aligning with the scenario described.