"When you're in there for a matter of hours and you spend $43,000 and you don't walk out with a deed, there's a problem," Peruto said.
According to investigators, the Caviar Bar was a front, one of six locations used by an Eastern European cartel to lure tourists and businessmen -- walk-ins are blocked at the door.
"B-Girls," or "bar girls," go to work picking up single men at South Beach hot spots and taking them back to the bars run by the Eastern European mafia, where they pretend to be customers and encourage the men to drink.
"It's fictitious from top to bottom and everyone's in on it," Peruto said. "The owner of the bar is in on it, the waitresses are in on it, these girls are in on it, everybody down to the cab driver is in on it."
Peruto said the bar's staff runs outrageous charges on the unsuspecting customers' credit cards and takes pictures of the men drinking to prove later that the men had been there and dupe their credit card companies into thinking the charges of thousands of dollars-worth of booze were legit. It worked with American Express in Bolaris' case.
"When the investigator tells John he has a picture with John having a good time at the Caviar Bar, John's response is, 'Don't you understand that it's part of the scam? They're photographing me because they want to have a plan enforced to defeat your claim,'" Peruto said.
Bolaris ultimately sued AmEx to reverse the charges. AmEx eventually settled the case, which was filed by Peruto, but would not comment to ABC News.
"This is well planned," Peruto said. "He wasn't the first victim, he won't be the last victim."
Authorities in Miami say this was all the work of a sprawling new Russian and Eastern European mob that has planted itself in this sunny vacation destination for the same reasons previous mafiosi, including mob legend Al Capone and the Italian mob's accountant, Meyer Lansky, chose it -- sun and easy money.
Richard Mangan spent 25 years as a special agent for the Drug Enforcement Administration and teaches a class on organized crime. He said this new Eastern European mob has been involved in several different kinds of scams, not just one.
"This group has been into credit card fraud, they've been into health care fraud, they've been into drugs, everything from stocks to market fraud to loan sharking," Mangan said.
Unlike the flashier Italian mob, the Russians keep a lower profile, Mangan said, and prefer working with highly intelligent bosses instead of brass knuckles.
"A lot of the people that run these organizations were nuclear scientists, PhDs, military officers, and lost their jobs when the Soviet Union collapsed," Mangan said. "We can all kind of deal with bank robbery, extortion, but when you start talking about credit card fraud, you're talking about a different kind of expertise."
Mangan estimated that the "B-Girl" scam represented only 10 percent of the crimes the Eastern European mafia was involved in. One reason the Bolaris scheme is so successful is that the victims are often married men, targeted because they look rich, and when exposed, they are too embarrassed to fight back.
However, the FBI eventually launched an investigation and Bolaris testified before a grand jury in a case involving 87 other victims, which led to 17 indictments and 11 guilty pleas. Six defendants will be tried in October.
After Bolaris told his story to the Philadelphia Daily News and Playboy last year, the Philadelphia Fox 29 station he worked for fired him, issuing a statement saying they "mutually agreed that it was time to part ways."