Blog - Lauren Pearl · Lauren Pearl
articleinsightModeling mistake
12 February 2026Profit
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About Blog - Lauren PearlLast month, I made a big mistake with a client:I was working as a Strategic CFO in partnership with another Fractional CFO Firm who's been managing the books.(I do this often - L.P.C. doesn't do controller/bookkeeping so we recommend accounting partners for this.)The partnership had been going great.The Fractional Firm had been recommended by the client's investor,And I'd been absolutely loving working with the controller they provided.He was excellent - easy to work with, giving me an amazing impression of his company.So, then it came time to build a financial model for the business.Now, typically when partnering with another firm, I raise my hand to build the model for our client.I literally teach founders and other FP&A professionals how to build startup modelsSo I'm typically the most obvious person for the job.But for this client, the other Fractional Firm was really gunning for…
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