After a brief stint as a used car salesmen, Joseph and his brother Harry Wilf began purchasing apartment buildings and renting units.

[9] After working as an attorney, Wilf joined the family business and became head of one of the company's affiliates, Garden Commercial Properties.

[14][15] In May 2012, the Minnesota Vikings moved closer to getting a new $975 million stadium after the state senate approved a plan that relies heavily on public financing.

[16] Later that month the deal was signed by Governor Mark Dayton and narrowly approved by the Minneapolis City Council, ending any speculation of relocation.

[18] In August 2017, Wilf, his brother Mark and his cousin Leonard became minority owners of the Nashville SC alongside lead investor John Ingram.

[19] On May 12, 2021, it was announced that Zygi, Mark, and Leonard were purchasing Major League Soccer club Orlando City SC, along with Orlando Pride of the National Women's Soccer League, and Exploria Stadium, from their ownership group led by Brazilian entrepreneur Flávio Augusto da Silva.