Help! My sister needs a family law attorney...

My sister and her husband recently got divorced and were sharing custody of their 5-year-old daughter. Their daughter came home from a visit at her dad's and shared with her mother that something inappropriate had occurred during that visit. My sister made a report with the local police department to open an investigation, filed for a TPO at their advisement, and CPS is involved since it involves their minor child. The ex-husband has retained legal counsel, and my sister is looking to do the same.