For a certain number of days after the expiration of the contract, if one of the potential buyers that the seller`s agent actually took buys the house, then you still owe them the commission. The expiration date also depends on the real estate market and similar homes in the vicinity. If every similar home in the area was sold in less than 60 days, you may want to strike a two-month deal. Ultimately, the expiration date of the contract can be negotiated with your real estate agent. Marketing is one of the best deals offered by a real estate agent, including online presence through sites such as Zillow, Trulia, and MLS (Multiple Listing Service). If you jump on the internet and can`t find something about your home for sale, you should be skeptical that your agent will hold his end of a good deal and consider jumping by boat…