Does anyone have any good recommendations on CPA firms that assist in structuring an acquisition on the buy side?

Looking for a unique structure to help bring on a partner into the company that will help scale our own internal, inhouse construction division.

My hope is to utilize best practices when structuring the equity agreement, to incentivize the equity based on performance metrics for that specific division, along with building a profit sharing agreement.

Don't need a big time firm, but someone who specializes in smaller deals ideally.