I'll have to dig through my files for the exact dates, but there were a lot of potential franchise moves in the NBA in the early 80s.
Around '82 there were reports that due to too many teams losing too much money several teams would fold, with others merging or relocating - I remember that the Kings, Clippers and Pacers were on the chopping block, with the Nuggets and Jazz merging and playing in Denver. This was around the same time Ted Stepian was planning to move the Cavs to Toronto (as the Towers).
The Spurs were also exploring relocation around 1985, with Miami as the top option. The league had been trying to get a team in Florida since the late 1970s - the Buffalo Braves had planned to move there before ultimately moving to San Diego in a convoluted franchise swap with the Celtics.