We lay out the 3 main requirements for suing your lawyer in a legal malpractice case in Maryland. The Henderson Law Firm can sue your former lawyer.What you need to bring a legal malpractice claim in Maryland and what our lawyers do when handling legal malpractice lawsuits. Step 1 in any lawsuit is get your own attorney. Legal malpractice cases are two cases in one. You must prove that your attorney exhibited negligence while handling your case. First of all, you can't sanction opposing counsel, only the Court can "sanction. " Next, you don't "have" the preponderance of evidence. Law Offices, P.C., specializes in the fields of personal injury, medical and legal malpractice, and police brutality. Small claims are handled less formally than other cases.