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In order to get the lien removed, you would have to file suit in court as a petition to quiet title and vacate lien, since the company is no longer in business. You would have to serve them through the secretary of state's office and then when nobody responds to the suit you would have to get the judge to release the lien on the title and then you can get a clear title. Unfortunately, in this type of situation only a court can release the lien if the lienholder is out of business and cannot be contacted to provide you a release of lien letter.