Oldham-born Ford is the son of former Rugby League star and England Rugby Union coach Mike and the elder brother of George who has established himself as one of the country's leading play-makers.
Joe has also been highly tipped to enjoy a significant career at the top end of English rugby having been an important figure in Leeds' march to the Championship play-offs this season.
He spent a season with Sharks Premiership rivals Northampton before returning to Leeds and is a player that Steve Diamond has been tracking for some time.
Joe can play at full-back as well as fly half and is metronomic with the boot. Joe's versatility will only boost director of rugby Steve Diamond's selection options next season.
It's a great signing for us as Joe is a very exciting player," said Sale co-owner Ian Blackhurst, "He has been in outstanding form for Leeds this season and played very well in their Championship play-off game against Newcastle last weekend. At just 22 years of age its obvious that Joe's best years are ahead of him and he will be another important addition to our playing squad."
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