I noticed this clause in the TDA agreement: m.
Post# of 36537
m. Worthless Securities. You may remove a worthless security from my account including, and without limitation to, the following circumstance: your primary custodian, the Depository Trust Company, has deemed the security eligible for removal and you have reviewed and determined, to the best of your ability, that the security has no market value. I agree to waive any claim to any future distribution from the security and agree to indemnify and hold you harmless from any claims, liability, or damages resulting from the removal of such security. If I provide you with evidence of the value of the security from an independent third party within 60 days of receiving your account statement noting the removal, you will review and, if able to, reinstate my position.