NBA finals hero Mike Miller, whose three-point shooting got the Miami Heat firmly in sight of their championship ring last year, has lost a ton of money in the South Florida real estate game, Gossip Extra has learned.

Miller, 32, sold his Pompano Beach waterfront digs at auction in late July, but the deal finally was consummated and made public in mid-December, according to Broward County records.

The damage?

Miller lost $2 million-plus on a crib he owned for barely two years.

Records show Miller, who returned to the Heat this season after contemplating early retirement, bought the 10,000-square-foot house in October 2010 for $5.4 million.

By any standard, the place was worth it. It’s one of a few dozen oceanfront single-family homes in Broward. It has a direct view of the Hillsboro Inlet lighthouse and its own private, sandy beach.

But when 43-year-old Coral Springs investor Sergio Selcer won it in auction, his bid was just $3.35 million.

At least, according to records, Miller was able to pay off his $3.24 million mortgage on the house.

The auctioneer didn’t return a call for comment, but Lighthouse Point waterfront Realtor Stephanie Heyman said there are risks to putting up a house for auction.

“An auction can generate excitement and competitiveness,” she said. “But buyers pre-qualified for a house of that caliber aren’t a dime a dozen.

“Miller’s property was unique, but buyers have become very savvy.”

Miller was unavailable for comment, and Selcer didn’t return calls.

Singing scott

The first 10,000 copies of a major book about notorious Fort Lauderdale Ponzi schemer Scott Rothstein are getting ready to hit the market next month.

Pelican Publishing’s The Ultimate Ponzi: The Scott Rothstein Story was written over the course of two years by local public relations executive Chuck Malkus, a former reporter at the South Dade News Leader.

The book is based on more than 5,000 pages from court and law enforcement files on Rothstein, and exclusive interviews of his business partners and friends.

Among them, two Lauderdale strippers whom Rothstein juggled along with at least four other regular squeezes, and a wife.

The latter, Kim Rothstein, is scheduled to plead guilty Feb. 1 to a charge that she conspired to hide $1 million in jewelry from government seizure.

A disgraced lawyer who built a giant law firm, Rothstein ran a $1.2 billion Ponzi scheme that eventually got him sentenced to 50 years in prison.

Among the tome’s revelations, according to Malkus, is the fact, from behind bars, Rothstein may be responsible for the dismantlement of one of the country’s largest escort services, the Sunny Isles Beach- and Detroit-based Miami Companions.

Owner Greg Carr was arrested as a result of the investigation and was recently released from federal prison after serving most of his 14-month sentence.

“I discovered that Rothstein was not only a client of the escort service, but he also did legal work for the owner,” Malkus said. “It’s well known that Scott has been singing like a canary in trying to have his sentence reduced.”

Singing is actually one of the things that made Rothstein endearing to women, Malkus said.

“He was a choir boy in school,” Malkus said, “and his girlfriends all told me he’d sing to them.”

The book release party is scheduled to take place at the Royal Pig Pub on Las Olas, across the street from Rothstein’s posh offices.