There is more to the process than saying that a property is available. As a broad rule of thumb, general selling tools such as signs, ads and advertising can be marketed across state lines. But real estate is localized. Just because you can find generic forms, contracts, and disclosure notices online doesn't mean they're acceptable in your specific jurisdiction. If blank forms seem attractive, check first with local attorneys before using.
Most brokers work on commission.
If there is no sale there's no fee. If you don't like your broker there are many places to complain, including state licensing agencies. Online sites which serve self-sellers offer selling tips, advertising, and general information. But real estate marketing is specific, localized, and competitive. There is useful and valuable information online, but selling real estate today involves more than form agreements and generalities.