I am a busy doctor with some cash I have been saving for truly passive investment opportunities as I am limited with time right now.

As you said it will free up some of your time and will help accelerate your business.

A Quick fill in.. we have a Commerical Resident property with a lot of equity and we are looking to use some of the money to buy a small seasonal business that has a ton of cash flow. 

They won't be advertising online because they are already busy.

These loans typically require a 20% to 30% down payment depending on the scenario and DO NOT allow for owner occupancy since it’s a business purpose loan, so you’d have to rent out both units.

Do this as a course of business and you may well be violating brokerage laws.

., so here are the regs around STRs in Chandler - https://www.chandleraz.gov/business/tax-and-license/short-te...I am assuming that you want to rent the entire triplex so it will require more down. 25-30% like others have pointed out.

This would make it a business to business transaction. 

I just need a Canadian business to invest in America?

Which in turn will bring plenty of other investors and general business to the area.