It’s odd. Typically any change in auditors is a flag to counter parties, just as a standard underwriting practice. So why change auditors now, especially if the company expects to uplist, whereby you want to avoid that kind of question?
Marcum might be just too slow, so maybe effectively were fired?
Cherry Bekaert is much larger with an international oriented practice. Are they really less expensive than Marcum? Baker Tilly, the parent company, does an awful lot of valuation work.
Other reasons beside cost: Disagreements, area of specialization, location of field offices?
My guess is they didn’t part on good terms.