Madigan's lawsuit charges the Chicago-based Omega Business Center was an umbrella organization for several entities that solicited consumers through print and radio advertising in the Polish community.
The lawsuit alleges the organization charged consumers upfront fees for services that were never provided and never issued refunds to customers who canceled their contracts.
Three men -- Michael Borowiak, of Niles, president of Omega Tax and Accounting and manager of Omega Investment and Development; Jorge Paredes, of Chicago, principal of Wall Street Inc.; and Jay Fortier, of Oak Park, manager of Halbulst Asset Management LLC -- are named in the suit.
Madigan's office said it received nearly a dozen complaints from consumers living in Cook, Lake and DuPage counties before filing the lawsuit. Altogether, those consumers lost $300,000, a press release said.