In Maryland near D.C., my neck of the woods, a lot of people use one of several semi-retired sharpeners/boot techs. Mike Cunningham at Skater's Paradise (figure skates only, sharpening and boots), Don Giese who used to manage Caravan Skate Shop (speed, figure, hockey) who might do it at his home, if you ask - though AFAIK he has stopped rebuilding boots -- sharpening and boots), Chuck Fox of Blades of Bowie (hockey, figure blades and boots) I think now only at competitions, not in his shop, and mostly sells real estate in New Jersey instead). I've used all of them myself.
One of the part-time hockey sharpeners at Columbia Ice Rink (in Maryland) may be good, just because he used to be an assistant equipment manager for the Washington Capitals, an NHL hockey team - I don't have his name, and he said he won't touch figure skates. In Virginia near DC, many people say Tim Burt is a good hockey/figure sharpener, and sometimes works at the Ashburn and Kettler ice rinks. I know a number of people who have happily used a sports podiatrist name Dr. Paul Meisner. I haven't used any of those three people.
Someone mentioned a good sharpener at the University of Delaware pro shop. Anyone know who? Is he/she good at boots too?
Also a podiatrist (?) near there - sounded something like "Dr. Popadopolus".
And again, there simply has to be at least one good sharpener near Detroit, since many great skaters practice there. Anyone know who? Is he/she good at boots too?
California must be large enough and rich enough to have some really good people too... Likewise for New York, London, Moscow and St. Petersburg, and lots of other places.
Don't be shy. Who is really good?