Yeah, I'm one of the lucky ones. With less then a year treatment over my lifetime, I was deferred to the FAA with need of further information and a battery of tests. The letter of information they require is long and extensive, requiring many tests to be preformed by a psychologist which is not cheap. In my case which I will be preforming the tests next month, the cost to me is another $2000 out of pocket, not covered by insurance since its a voluntary set of tests. While taking these tests there will/is no guarantee that the FAA will allow special issuance. That does not include the previous amount spent on the original doctor saying I'm asymtamatic in reguard to ADHD and basically it was a trial. IF you need hotspot, I can pm you the information that your friend may wanna look into since I found it to be problamtic to find someone with knowledge in the set of tests they requested in my area. I was given the 30 day time-frame to have the tests done but they gave me an extension, due to the fact the list is long. Actually if you have an AOPA account, on there you can see some of the basic testing requirements(in my case it fit very similar to what the original deferment letter said).