After 26 years of breaking down doors, bugging telephones, setting up a mercenary Army in Dubai and working as a bodyguard for the late Aristotle Onassis, Monte is franchising out his successful Sydney Business after failing to sell it for $4 million.

Offers for the business - which Monte claims makes more then $1.5 million a year - closed last week with the highest offer from a West Australian businessman at $2.5 million.

The supremo of Monte's Investigation Services said he had received about three serious offers for the business.

"If I can't get the $4 million, I'll just franchise it out," he said.

"There's one really rich guy who wants to buy the business for his son but he couldn't meet my price."

Monte, who has suffered seven broken noses and a smashed set of knuckles while gathering a world record collection of divorce evidence, said Australia's recession had forced him to take his business overseas.

"I just don't have the big clients here anymore," he said.

"There are Aussie lawyers in New York and I've already set up an office on 5th Avenue.

"New York and Los Angeles are the places where all the business is."

Monte, 46, said his move to America was partly motivated by his hope to have his life captured on celluloid in a major Hollywood movie.