It takes time. Unless it is a superb domain. Note that even if you got appraisal for domains for x amount of money, it does not mean you can sell them. It just means that if they are sold in the future, people may buy them at that prices. However, if you are willing to sell them at 1/3 to 1/2 of the appraisal values, you may get they sold in a week or two.
Anthony
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