Especially in Ontario because it is really hard to get rid of bad tenants.From what I've read (and what you seem to be doing) is to prescreen the vast majority without an interview then only invite the best of the best to see the property.

Screen and interview the property manager as you would a tenant, get referrals and call them.Best of luck! 

You're not interviewing for a job hoping to get hired, in most cases anyway.

What are some of the things I should look for, or be aware about when interviewing contractors.

Regardless of how you find them, try to interview at least three managers1.

One recommendation from someone you know within the organization will almost always at least land you the interview. - Pass all your classes but don’t kill yourself over grades.

Contractors- Interview a few GCs and see if one will let you tag along as they estimate a few jobs. 

Regardless of how you find them, try to interview at least three managers1.

The videos and interviews really have gotten me to thinking of investing my hard earned money differently besides my usual 401k/mutual funds/stocks. 

During your interviews, inform them of your pesonal goals involving real estate and what incentives or assistance they give towards you buying your own home.