For context, I own a duplex and rent to A-/B+ class.

I love those people that pick up the phone to call a broker for the first time and use that age old tired criteria - "I'm looking for a C in a B".

Not desirable A, B-class, good old-fayshioned low-C-class SFR.The bus to Crazytown seems pretty crowded when I watch it pass these days.

Units A, B, C and D". 

Would you say the area is white collar and more like a B+ area?

You can find many 4+ unit multi family here, but if you want A/B class you may be looking at $400k+.

CONSLower revenue potential vs B & BStill need to get the B & B license (and still need to provide "breakfast" even coffee & donuts)STR biz model would mean much hight taxes vs B & B business (from what I understand)HUGE Airbnb competition - area is highly desirable but oversaturatedPROSGreat revenue for an under $500k total investmentQuicker ramp up to produce revenueCan become passive much sooner than a B & B OPTION 3.

I have acquired a rooming house about a year ago in Calgary, AB and I am looking to connect with fellow investors to discuss the topic.

My place is somewhere in a B class neighbourhood, I’m thinking it’s worth the extra cost to maybe just commit? 

A few details:35 years old, credit, income, and 401k good for the age; 100k in stock/cash; wife, and a brand new baby.Market: Highly competitive north of Boston- Class A 3 unit, (2BR 1BA ea) properties in Class A/B neighborhoods go for 850k, Rents are 1800-2k per unit.  30 minutes more out, you're looking at 600-650k for the same building with 2BDR rents around 1650.