Some accounting firms promote that they offer CFO services. This is because the accounting bodies e.g. CPA etc. have told them they need to do this to remain relevant to their clients.
Well rounded experience over several decades, is a must when hiring an outsourced CFO.
Generally an outsourced CFO charges between $1200 and $2000 per day. This may sound expensive, however a good outsourced CFO will deliver many times their cost in improved profit, cash flow and business value.