speech and language assessor for IEE

Hi, I am looking for recommendations for highly skilled and experienced SLPs to do an IEE (independent educational evaluation) for my 7-year-old child with complex communication needs. This person should be independent from any school district but with experience in and knowledge of the workings of IEPs, as well as apraxia, language disorders etc. We're in Berkeley and have had a whale of a time finding someone who is qualified and available to do it. Anyone have recent experience? Advice would be appreciated for SLPs who have been helpful and those who have not. Thank you!