So the investment firm buys up the Ottawa hinterlands, builds the rail line, then sells the land at a sufficiently inflated price to pay for the rail line with plenty of money left over.  Other connected Chinese investors no doubt leverage the scheme by purchasing additional properties and selling them for a big profit.  Trudeau gets bragging rights for an infrastructure project that the government did not pay for.  So who pays?  Future generations of Canadians looking to buy a home at inflated prices.  Future consumers looking to buy locally produced food with a reduced agricultural base.  Neither of whom are voting in the next election.  Sounds like a deal, I would guess.