Can you get out of a property listing contract signed with a real estate agent?

Normally agents will let you out of the listing contract, provided the seller agrees that anyone who viewed the property while it was listed will be a protected client for that broker and a commission will be payable if that potential buyer turns into a real buyer within an agreed upon period of time. (Ex: 90 days)

If you have a legitimate reason to cancel the listing agreement, contacting the broker in charge of your agent's office should result in the listing being cancelled. The bottom line, if you as a seller refuse to cooperate with showings, the broker's chance of selling the house plummets and most agents have no desire to deal with all that!