BUT - you then have to install a mechanical keybox on site for each unit because 'wireless' is far from consistent. 

Would i be able to rent the shop out for someone to run their mechanic shop out of or is this not allowed due to residential zoning?

A home inspection will help you identify red flags regarding the property's foundation, mechanical systems/utilities, roof, and overall condition.

Mechanical breakdowns are much less common and easier to repair.

Newbie investor here.Hope everyone's having good holidays despite the pandemic.My name is Jason, and I'm a resident of BC looking to put a foot into REI, particularly via BRRRR strategy.Besides having recently purchased a townhome (primary residence for my family) in Port Coquitlam, listening to RE podcasts including biggerpockets to and from work in the car, and having read couple books, I would say that I know very little regarding REI.I figured I would join the community to connect with people and learn from those who have walked the walk.I learned about the BRRRR strategy, and on paper, the mechanics make sense to me.

Is HVAC or building mechanicals an issue, have you encountered high rise residential issues, roof top ADA or similar? 

The mechanic had to send the heads out of town to be planed.

That being said, I think too much emphasis is being put on getting a mentor. 

If its a complicated one with permits being pulled, a lot of mechanical work, maybe foundational issues, I would recommend using a GC instead of doing it yourself.

I would waive inspections if i knew i were purchasing a real "cash cow" because if the deal is objectively good enough fixing the mechanicals might still be worth it.