Assuming that we're talking about AAAA...
The top two Peel teams represent ROPSSAA at OFSAA, unless one of them has declared AAA or smaller.
The champion of the Toronto Catholic league receives a berth directly to OFSAA, unless they declare AAA or smaller.
The top two AAAA teams in each of the four Toronto Public leagues playoff to determine the two OFSAA reps. The loser of the AAAA final must playoff against the semi-finalist that lost to the eventual champion for the second spot.
The Durham AAAA champion advances directly to represent LOSSA.
The York champion advances directly, assuming they have not declared AAA or smaller.
The Halton AAAA champion plays off against the Hamilton Catholic champion to determine the GHAC rep. If the champion of Hamilton has declared AAA or smaller then the best AAAA team plays the Halton champ instead.
There are no AAAA girls schools in the private school league so they don't send any reps.