Salem County is studying the creation of what would be New Jersey’s first countywide school district. The Morristown-based law firm Porzio, Bromberg & Newman P.C. is examining the educational, financial and demographic impact of a potential school consolidation. The Salem County freeholder board hired it for the feasibility study, which is being paid for with a state grant. There have been only a few school mergers in the state, and Vito Gagliardi Jr., Porzio’s managing principal, said that if a countywide district is created “this would be the grandest example of school consolidation in the history of New Jersey.”