Both have been around a long time. Sherry was Leitz tech, and Don may be factory trained as well. I think Sherry does Leica rangefinders only. Don does the SL and R series and other brands as well. Both have excellent reputations and reasonable fees.
Lee, we must have been typing at the same time! Both Don and Sherry are Leitz factory trained. Don also works on Minox cameras. In addition, Don's father was Norman Goldberg who among a few other things used to review cameras for Popular Photography Magazine way back when.
Thanks Richard. Didn't know about the Goldberg connection. I think the last time I read Pop or Modern was in about 1971 or -72, but I do recall Norman's articles.
Just for emphasis, both Sherry and Don have superb reputations earned over many years. It's no coincidence that we both came up with the same two names. In fact I was surprised that they hadn't been mentioned yet.