So if there are 150 new buildings going up, each with about 200 to 300 new units in each, plus a flood of resale units currently available. Market rents are going down, the condo market year over year appreciation is pretty low now compared to before, I think it's about 4 or 5% now. What would lead me to buy your assignment, and pay you an extra 10k or 15k for your contract. When I can just go to the builder and buy off them. Everyone and there uncle is trying to do assignments, I think builders have even caught on and have added an assignment fee. What if you cant find someone to buy your contract? Are you able to a actually close on that deal? Then what.. are you going to sell or rent it out at a loss.
If you currently qualify for a 300k mortgage, then with your 20% down you can buy a house for 360k. There are lots of markets where this is still possible. London, kingston, brantford, orrillia, welland, Peterborough to name a few. You have to go 2 hrs out of toronto. The brrr strategy is great. Look for dumpy houses in nice neighborhoods that way you get added value for what ever work you do to the house. If you can, add a second apt so you get maximum revenue and cashflow generated for your property, but if you cant for now, just make sure the property cashflows as a sfh. Get the property rented, use what you learn on BP to get good tenants, I won't get into that. And after a bit of time, once you pay down some mortgage, and you've increased the value of the property, you start the refinance process and get your money out to do it again.
I'm going to reiterate what's already been said about j.v. partnering. Though it's a great tool to use once you hit the credit wall, I would steer clear at the start and try to get a few properties on your own first. It will be more work, a slower process and a bit more risk, but the rewards are all your and it's your foundation that you can build off of later. Also there seem to be alot of people withno money and no credit, who want to jv as the "I'll do all the work for 50% partner" out there looking for someone with money and credit. Good luck. And there are lots of people who can help you along the way.