- Lindsay, Goldberg, Bessemer - Assisted Lindsay, Goldberg & Bessemer (LGB), a New York-based private equity firm, with purchasing a ten-year license to operate the State of Maine's wholesale liquor business – a monopoly that netted the state over $25 million in profits a year. Severin and Preti Flaherty's Legislative Group worked with state leaders to enact landmark legislation authorizing the State to accept bids on the business. LGB made their offer, but didn't win the contract.
- Harper's Development - In one of central Maine's most significant economic transactions, Preti Flaherty represented Harper's Development in the acquisition of, and debt and equity financing for, the 310,000 square foot SCI Sanmina building in Augusta, one of the largest manufacturing buildings in central Maine. The transaction effectively transformed a defunct manufacturing facility into an office park that houses over 1100 employees, including a 300-employee call center and numerous government offices.
- Trade Mission to France - As Honorary Consul of France in Maine, Severin was instrumental in organizing Governor Baldacci's trade mission to France in 2005, which generated more than 5 million dollars in first-year sales.
- Plum Creek - For Plum Creek, the nation's largest private landowner, Severin led a team that petitioned Maine's Land Use Regulation Commission (LURC) to rezone nearly 420,000 acres of land in Northern Maine. After proceedings lasting three and a half years, Plum Creek's petition to rezone was unanimously approved by LURC. The Concept Plan is the largest development plan in Maine history and the effort was by far the most complex and contentious regulatory proceeding in Maine history. The rezoning authorizes Plum Creek to develop approximately 16,000 acres for 975 house lots and land for two resorts on Moosehead Lake. The Plan sets aside conservation easements of 392,000 acres to be permanently preserved as sustainable forestry and establishes a significant affordable housing program.