When you raise a Series A or later funding there normally is an extensive amount of due diligence done before the deal is closed. Sometimes you pay for it, som

When you raise a Series A or later funding there normally is an extensive amount of due diligence done before the deal is closed. Sometimes you pay for it, sometimes the VC pays for it, but it happens. Before that point spending extensive time or money on due diligence is probably a waste. By all means keep accurate documentation of what is going on and follow best practices, but if there are a few minor issues it probably doesn't matter and will get cleaned up later if your business is doing well enough (note: this situation is obviously not a minor issue).