If you are a recognizable expert in your field to the level that you are getting cold call contacted for your opinion, consider charging more, especially if you

If you are a recognizable expert in your field to the level that you are getting cold call contacted for your opinion, consider charging more, especially if you work in tech, finance, or a high compensation field. Keeping time open for these meetings, and the irregularity of bookings is very different than a long-term contract work. Watch your overhead. $1000 for an hour of feedback may be more reasonable.