Ask the basketball league if anyone remembers how they got started. The most important thing is going to be finding a contact with the local Referee chapter. Our city runs the league throw the local parks and rec department and they handle the schedule and refs. It was coed and I played on it a lot of fun. Also the park and rec department owned all the fields so having them schedule it was the only way to go. I don’t know who owns/manages your fields contact them and see if they are open to options and what they suggest. The number showed be on a sign saying something like use by appointment only call this number.