The former England captain, who quit playing at the end of last season, is in the "final round of negotiations with backers" for an MLS franchise according to the Daily Mail's respected sports business reporter Charles Sale.
Beckham played in the MLS with LA Galaxy and his contract included an option to create a new team with a 25 per cent discount, with the former midfielder speaking in the past about how appealing becoming a football club owner is to him.
Beckham visited potential stadiums in Miami in the summer and is hoping to announce progress before Christmas.
Co-investors will likely include Bolivia-born billionaire Marcelo Claure; the owner of the NFL’s Miami Dolphins Steve Ross; and Beckham's business partner Simon Fuller.
In the summer Beckham visited Sun Life stadium, home to the Dolphins, whose owner Ross recently set up a football division, and met with the Dolphins chief executive Mike Dee.
Sun Life holds around 75,000 fans and has hosted several international friendlies in recent years but may be considered overly large for an MLS team.
Together with British entrepreneur Fuller, whose management company XIX Entertainment, handles Beckham's business affairs, Beckham later visited a 20,000 stadium at Florida International University.
Claure, owner of Bolivian club Bolivar, is a member of the board of trustees of FIU and has previously promoted the idea of an MLS team playing at the venue.
The FIU stadium underwent major renovations in 2007 and is home to the University's American football team.
At the time Beckham told CBS4 News television: "I think bringing an MLS team here to South Florida would be... it's exciting.
"I think Miami fans are very passionate about their sports and very passionate about winning and of course, it would have to be success but it's definitely exciting,"
The city briefly had an MLS team, the Miami Fusion, who played in neighbouring Fort Lauderdale and joined the MLS in 1998 but were closed by the then struggling league after four seasons.
MLS has enjoyed a boost in popularity in recent seasons though and the league is looking to expend.
Earlier this summer Manchester City and the New York Yankees announced they had formed a new MLS team to play in New York City from 2015.
They will become the 20th team in MLS and will face a local rival in the New York Red Bulls who play in Harrison, New Jersey. The "franchise fee" for the City/Yankees was $100 million (£61.6 million).