If you're still looking for a spring/summer league here's a suggestion:
Van Saun Park in Paramus has leagues for a few different levels.
I can't vouch for the level of play, or the level of professionalism from the management company however. They've changed management more times in the past decade than I can remember from 1 corrupt company to another so they would never get another dime of my money.
You're better off finding a local court & a regular game @ one of them. The competition is just as good if not better than the leagues around here & you #1 don't have to pay to play & #2 don't have to make a weekly commitment.