Personal experience from having been through both sides: People who come from corporate backgrounds tend to think having accountants and lawyers is necessary e

Personal experience from having been through both sides: People who come from corporate backgrounds tend to think having accountants and lawyers is necessary even when it's a one man company because they're used to being specialists, and accountancy / legal isn't what they do. People who come from lean startup backgrounds tend to think they can get by on their own work and the advice they can get over a pint with a lawyer forever because they're used to being generalists. Doing things that they have no expertise in is what they do every day. The reality tends to be somewhere in the middle. Doing your own accounts when it's just you is ~as hard as getting someone else to do it. Doing your own accounts when you're a team of 20 is enough of a time sink to drag down your overall productivity significantly. If you do go down the "professionals" route though, costs mount quickly.