My attorney failed to file proper court papers (changing lawyers, replies to motions) - can I sue him for malpractice?

My lawyer did not file papers correctly with the court so the judge did not look at any of my papers in my post judgement of a divorce matter. He did not work on the proper affadavits and as a result, I had an improper money judgement of $38,237.00. He did not give me my papers needed in connection with the after effects of this money judgement. As a result, of his mishandling and negligence which I have paper proof through email and documents, I hired another attorney to fight the additional monies my ex husband was trying to get from me with regard to the $38,237 judgement. The lawyer fee was $25,000. I paid the lawyer that I want to sue $9,000. I would like the total of $75,000 approximately -- need help