The prosecutor said Marshall Swan under-reported $650,000 in income during tax years 2006-2010.

Residents in Chelsea will decide sometime early next month whether they want the town to pay former contractor Frank Monroe $20,000 to drop a suit he filed against the town in 2011.

Filings continue in advance of sentencing in June in federal court for the former Chelsea selectwoman.

Carole Swan, who was convicted of extorting money from a Whitefield contractor, along with other charges, and her husband Marshall Swan, convicted of filing false tax returns, will be sentenced separately in U.S. District Court in Bangor.

Assistant U.S. Attorney Donald Clark describes a long list of lies, retaliation, witness tampering and other activities he says should be taken into account when the Swans are sentenced this year for various federal crimes.

The contractor, husband of former Chelsea selectwoman Carole Swan, is convicted of falsifying tax returns.

Marshall Swan, 56, of Chelsea, faces charges that he failed to report about $674,000 in income over a period of years.

Less than a week before Marshall Swan’s scheduled trial date in federal court, the prosecutor sought to dismiss a pending charge of aiding and abetting federal program fraud related to the culvert project on Windsor Road in Chelsea.

A jury late Tuesday night convicted former longtime Chelsea selectwoman Carole Swan of taking kickbacks from Frank Monroe, who held the town’s sand and plow contracts.