defense_id,filing_id,defense 166,27,1. Statute of limitations 167,27,2. Justification 168,27,3. Estoppel 169,27,4. Waiver 170,27,5. Ratification 171,27,6. Release 172,27,7. Unclean hands 173,27,8. Contribution 174,27,9. Failure to mitigate 175,27,10. Lack of standing 176,27,11. Accord and Satisfaction 177,27,12. Assumption of the Risk 178,27,13. Illegality/Criminal Acts 179,27,14. First Amendment 180,27,15. Attorney Immunity 181,27,16. In Pari Delicto 182,27,17. Res Judicata 183,27,18. Defect of Parties 184,27,19. Abandonment 185,27,20. Subject of a Valid Contract