I am a sub-sub contractor in Texas on commercial properties. I had zlien file 2 mechanic liens for me to try and get the monies owed to me for the work we performed. The letter from the General Contractor's attorney states that my liens are invalid and if I do not sign the releases, they will take action against me. Desire Baez, who has been handling this for zlien, has all the paper work in her possession. I can provide it as well if need be. I just need to know my options and if I should sign the releases or not, or if the liens are in fact, invalid. Thanks