Anderson was in Miami on Saturday and has passed the team physical, paving the way for him to be officially signed either Sunday or Monday.
Anderson agreed to a $20 million buyout of the remaining three years, $24 million of his contract with the Knicks earlier in the week, paving the way for him to join the team of his choice.
A number of teams -- including the Bulls, Rockets, Nuggets and Warriors -- also made a push for Anderson. However, Anderson wanted to join a team with a legitimate shot at an NBA title. The Heat are starting Rasual Butler --a former second-round pick in his third year -- ahead of veteran Wesley Person at small forward.