Send him or her a letter asking the following: 1) when was my case dismissed 2) why was my case dismissed 3) did a judge order the case dismissed and if so what judge 4) do you think the dismissal was justified 5) can I appeal
You can hire another attorney to obtain and review your file. Look for an attorney that handles legal malpractice cases, as they will have the experience to look for failures in your attorney's performance.