I'm not entirely sure about the administrative procedures for communicating with francophone parents. You must understand that the francophone community in Saskatchewan is quite small. People know each other fairly well and they speak to each other. The community is well aware of the right to French‑language education. This isn't an issue.
Now for the last question.
It's quite rare to have the opportunity to open a francophone school in Saskatchewan without first filing a class action lawsuit against the province. This is one reason why many francophones don't have access to French‑language education. It takes a great deal of determination, time and energy to take legal action to push for a school for our community.