Joshua Vandine, 38, faces 115 charges, according to the criminal complaint prosecutors filed for the case.
Investigators say they caught on to Vandine's tactics and tracked down stolen items taken from homes and storage units.
Vandine is accused of burglarizing dozens of locations and of making repeat visits to some storage facilities in Thomaston and Rockland.
"So the allegation (from investigators) is that he was cutting locks and replacing them so it became very hard to detect that this was happening," District Attorney Natasha Irving says.
According to the criminal complaint, Vandine went after art, a taxidermied bear and anything else of value.
Irving said the dollar value of the stolen items added up to hundreds of thousands of dollars in stolen items but it was one category of items that caught prosecutors' particular attention.
"What is most concerning about this case is the fact that Mr. Vandine is accused of stealing firearms. And when folks steal firearms, they end up in the hands of the wrongs folks and those people often end up causing violent crimes that end the lives of people, including children," she said.
Due the long time and wide reach of the crimes, investigators consider it an open case and say more charges might be added if more theft victims come forward.
Irving says complaints have come in from Penobscot and Kennebec counties.
Officials say Vandine has a criminal history of theft and not showing up for court so prosecutors asked a judge for an unusually high cash bail for a theft case. Vandine is being held at Knox County Jail on $50,000 cash bail.