1. Use a written agreement. If possible, specify a limit the expert cannot go over without your approval.
2. Expert fees will include travel time, travel expenses, and preparation.
3. Note that the expert’s fee for testimony may be higher than for reviewing a file and that the rate for appearing in court is usually per diem.
4. Remain in periodic contact with your expert. This is especially important if they are located in another city or state. If the expert becomes unavailable, staying in touch is crucial.