Representatives for Hitt Contracting Inc. have accused a private investigation firm of witness tampering, including threatening and trying to intimidate one of the contractor’s former employees, as part of its contentious lawsuit against the foundation behind the Glenstone contemporary arts museum in Potomac.
Lawyers for Hitt, in a Dec. 21 letter, asked U.S. District Court Judge Paula Xinis to look into what it described as heavy-handed actions by Bethesda-based RosettiStarr, which was retained…
