Aon said it plans to spin-off Combined into a separate insurance company sometime during the latter part of this year.

Dennis Reding, chairman and chief executive officer of Combined, said the acquisition is part of the company's strategy to expand the property?casualty business into the specialty p-c market. He said he expected to begin immediate underwriting through the new acquisition.

Robert P. Mancuso, a spokesman for Aon, said that until this point the insurer has not had an excess and surplus lines facility.

Aon also announced the naming of six executives for the insurer:

? John Intondi, has been appointed senior vice president, claims. He will be responsible for all claims matters for the p-c group.

? Michael Wisner was appointed senior vice president, p-c group operations. He will be responsible for premium and loss transaction processing for the p-c group.

? Dean Maxwell is appointed senior vice president, internal audit executive. Mr. Maxwell will be responsible for internal audit functions for all operating units of Combined.

? Phillip S. McCrorie was appointed vice president, controller for the p-c group. He will be responsible for finance and accounting functions.

? Ed Velasquez was appointed executive vice president, management liability and professional liability lines. He will be responsible for managing commercial and financial institution directors and officers products, fiduciary liability, employment practices liability and miscellaneous professional liability products.

? Michael Flaherty was appointed senior vice president, E & S Umbrella and excess. He will be responsible for management of the wholesale umbrella and excess liability practice for the p-c group.

Mr. Intondi, Mr. Wisner, Mr. Maxwell, Mr. Flaherty and Mr. McCrorie will be based in Atlanta. Mr. Velasquez will work out of New York City.