I am in process of getting a DC carry permit.
DC requires 16 hours of training plus range qualification, but allows for exemptions to training at their discretion.
Friday I took a 3 hour legal class in Arlington, VA with George Lyons of Arsenal Attorneys. High quality class, would recommend. About 20 other students. Nearly everyone was an FFL or an instructor. Most were from surrounding states and a few like me out of area.
Class fee was $75.
George thinks I will get the training exemption. I have Utah, Florida, Illinois, and an expired Kentucky permit. I'm also an Illinois CCL instructor.
Monday morning I submitted my application at the station at 300 Indiana NW. Officers were relatively friendly, much more than the old Chicago CFP / gun registry desk. Spent about 90 minutes between filling out forms, getting fingerprinted, and other paperwork.
I submitted all forms concurrently - firearm registration, concealed carry application, and statements of eligibility. This had to be done in person. Total cost at the gun desk was $110.
Plane ticket was about $700; public transit $30.
Total cost, not including prior training, and not including a hotel - $915. I probably spent about $1500 in prior training.
The gun desk and the attorney both said to expect the process to take about 90 days before receiving an up or down on the application.
I'll answer any questions you have.