I've worked with the same dental specific tax accountant for my entire career (26 plus years). He's been there for my 1st partnership buy-in; 3 separate start ups; commercial building aquisition; sale of my ortho practices; and he still does my "simple" tax returns now that I work Corp dentistry.
I always paid him a monthly retainer plus additional fees for returns, etc. We met every quarter to discuss P&L and next year's tax strategy. He is always available to answer any questions.
Having a good dental specific tax acct is vital for your dental career. I can't think of a more important business consultant.
To this day .... Matt (tax acct) and myself are good friends. I've recommended him to every dentist I come in contact with.