Yes, in most courts — but the practical considerations deserve careful thought.
Mandamus petitions can generally be filed pro se in both federal and state courts, since the right of self-representation in civil matters is well established. The more important question is whether doing so is a good strategic choice for your specific situation.
What self-representation requires
Petitioners filing without counsel are held to the same procedural rules and deadlines as represented parties, including the technical service requirements for federal officer mandamus discussed elsewhere on this site — courts generally do not relax these requirements simply because a petitioner lacks legal training.
Resources available to self-represented petitioners
Many federal and state courts maintain self-help resources, including sample forms and procedural guides, and some court clerks' offices (though they cannot give legal advice) can clarify basic procedural requirements like filing fees and service rules.
When the stakes or complexity favor hiring counsel
Cases involving contested jurisdiction, complex multi-party disputes, or appellate mandamus against a judge tend to benefit substantially from professional representation, given the technical precision these situations demand.
Limited-scope legal help as a middle ground
Some attorneys offer limited-scope services — reviewing a self-prepared petition or providing targeted advice on a specific procedural question — providing meaningful quality assurance without the cost of full representation.
The bottom line
Self-representation is a realistic option for many straightforward delay-based petitions, but petitioners should honestly assess the complexity of their specific case and consider at least a consultation with an attorney before proceeding entirely alone.