Legal Ghostwriting &
Research for Litigators


Sullivan|Simon is a boutique law firm with one mission: Elevate legal advocacy through excellent research and writing. We are professional legal ghostwriters who write briefs and motions for successful civil and criminal trial lawyers. 

Matt Sullivan and David Simon have over 25 years of experience in legal writing and research. We have written appellate and trial court briefs, motions, and other legal documents in jurisdictions nationwide. Together, we ensure that every Sullivan|Simon brief is engaging and persuasive, ensuring your arguments resonate.

Legal Ghostwriting

We write quality, timely, and persuasive appellate and trial briefs, motions, memos, and petitions to help litigators win their cases.

Legal Research

We research caselaw, statutes, regulations, treatises, and other secondary sources and provide litigators with everything they need to know about their legal issue.


“I’ve used Sullivan | Simon multiple times. They’ve written great appellate briefs for my clients on appeal and for trial courts. I regularly recommend them to colleagues.”

“My client was charged with drug distribution in the Eastern District of Pennsylvania and was looking at nine years in jail under the guidelines. Sullivan | Simon wrote a sentencing memo for us and he got one day in jail. I’d say they did a pretty good job for him.”

“Excellent job. I am really happy and I think my client will have little to complain about once he reads the brief.”