A North Carolina real estate broker lists their vacation home for sale.

The broker can be a designated agent of the buyer if another licensee in the brokerage firm acts as the broker's designated agent.

The broker can represent the buyer with informed written consent because the property is not the broker's primary residence.

The broker can represent the buyer with informed written consent as long as the broker's ownership interest in the vacation home is less than 25%.

The broker cannot represent the buyer under any circumstances.