Thanks for elucidating my point about the legalities,
@interchange42
I have no idea if anyone in this province has ever tried to expropriate air rights and given the in-use value, yes, that would make for an interesting legal case indeed. Sure, ORCA could be positioning so the city will have to buy them out, but that acknowledges the city knew, even as they announced this glorious legacy for the city, that they didn't own the real estate. A complete OPA planning application like the one ORCA submitted does not appear overnight so the city surely knew they were at least trying to do the development. The mere fact that the city is even talking about expropriation already suggests to me they have reason to believe ORCA has a deal with the railways. And to expropriate adds to the already-pricey project whereas a development deal would mitigate those costs.
Logic would dictate that ORCA has to negotiate with the city which owns small ,but significantly located pieces of land and the city has to negotiate with ORCA which (presumably, apparently) owns the bulk of the proposed parklands. Since we live in a democracy, and all that, I'd hope they negotiate and come out of it with a good deal for everyone but if private developers own the land, the city is going to have to own up to it and confront it at some point. I doubt it will be long before this moves to the next phase, whether that's the OMB or open shouting matches, but the questions aren't going to remain questions forever.