It's all a best guess but hopefully some guesses are educated while others aren't. 

I won't jump into any deals that aren't going to guarantee at least 20% equity after rehab.  

You really need to check out Dave Ramsey, because you have every type of debt you possibly can and are living WAY above your means, even if you think you aren't.

So is there many canadian authors for real estate books?

If you’re fighting comps and they aren’t considered as important you’re certain to lose the fight.

Finally, make sure you aren't missing any value adds or upgrades that could bring up rents.

Let them know that you filtered down a big list and still are interested in their property, this lets them know that you are seriously interested and aren't sending out thousands of letters looking to snag something at a low price.3.

If you use an agent to acquire, and they aren't tied to the outcome, there is no reason for them to "own" the estimated rental rate, repairs cost or "rentability." 

People who are very experienced at renovations/building aren't just going to show the special sauce on what took years to learn. 

While these rates aren't the greatest they do provide you with the highest return and greatest flexibility.If you have any concerns about being tempted to access your money, you could also do a bond or CD ladder.