Roger Rosendahl seems to think his age discrimination lawsuit already died, but it looks to have outlived his expectations. It might not last much longer, however.

The former Stoel Rives project finance partner sued his former firm last December in Washington, D.C., superior court, and the case was removed last week to federal court. A Morgan, Lewis & Bockius team defending Stoel Rives filed a motion to dismiss Rosendahl’s suit on Wednesday.