Richard Tisei (top) and John Tierney are battling to represent the state’s Sixth Congressional District.
Richard Tisei (top) and John Tierney are battling to represent the state’s Sixth Congressional District.

Democrats on ramped up Wednesday their efforts to turn the tables on Republican Richard R. Tisei, whose challenge to US Representative John F. Tierney has been boosted by the legal troubles of Tierney’s family.

State party officials announced a two-pronged effort to allege that “Tisei personally benefited by at least $30,000 dollars from the sale of a house that was among the assets his parents were alleged in court to be hiding from parties they damaged.”

The allegations — denied by Tisei, a Wakefield realtor who served in the state Senate — were recently reported in the Boston Phoenix.

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The Democratic Party put up a website, www.TiseiFacts.com, and state party chairman John Walsh held a conference call with reporters.

Republicans previously launched a website focused on linking Tierney, a Salem resident, to a gambling ring that some relatives were involved in. Tierney has said that accusations contained in the website, HowCouldTierneyNotKnow.com, are inaccurate. On Wednesday, Tisei unveiled another website, TierneysTales.com, devoted to his call for an ethics investigation of the eight-term congressman.