Historic Scull Mansion, which sits on the east side of South State Street across from Bayhealth Hospital, Kent Campus, has a new lease on life — at least for the next 18 months. In a letter to Dover City Planner David Hugg dated March 25, Gregory Moore, vice president of the Becker Morgan Group architecture/engineering firm, wrote, “We agree to keep the structure on site for a period of 18 months from the April (Planning Commission) hearing allowing the Friends of Old Dover time to raise money and organize a move of this structure, or otherwise develop a resolution acceptable to Bayhealth. If after the 18 months the structure has not been relocated or otherwise resolved, we reserve the right to seek demolition.” The mansion has been caught in the crosshairs of progress and historical preservation since Bayhealth officials last year announced their three-phase plan of building a 680-space parking lot on the site of the house, which sits at 625 S. State St.