Murder in the Churchyard (Brianna Kelly Paranormal Mystery Series) by Shirley B. Garrett

While psychic Brianna Kelly and her ghost-hunter friend Mystery Jones are dog-walking, they discover the body of the hated president of the Historic Preservation Board in a local churchyard. The late president is now a ghost who starts causing all types of trouble. When they discover a neighbor’s haunted house is connected with the murder, the investigation becomes more twisted than they could have ever imagined.