SPRINGFIELD — Two majority shareholders of breakout beer star Tree House Brewing paid themselves “excessive” salaries, surreptitiously invested in $16 million in real estate holdings and cheated a minority shareholder out of proceeds, according to a recent lawsuit filed in Hampden Superior Court.

Eric Granger, a 2% shareholder in the wildly successful business, filed a complaint on Nov. 15 against majority shareholders Nathan P. Lanier and Damien L. Goudreau.

Borne of a craft brewery in Charlton that opened in 2011, the company now owns a network of breweries in Massachusetts and Connecticut, including a site in Deerfield, a golf course in Tewksbury and an oceanfront brewery on Cape Cod.