When seeking the best lawyer for complex territorial jurisdiction disputes, you should prioritize a civil litigation attorney with a proven track record in handling jurisdictional motions and appeals, specific expertise in the rules of civil procedure and constitutional due process, demonstrated experience arguing cases involving long-arm statutes and "minimum contacts" analysis, and deep familiarity with the case law in both your specific state and the relevant federal circuits, as this specialized knowledge is crucial for effectively arguing against dismissal and persuading a court that it has the authority to hear your case.