What zoning code could I request a zoning variance or rezoning that would allow us to have the 2 livable units on parcel, one primary residence and one additional living unit (known currently as ADU)?

Similarly, the sale ($575K) minus your adjusted basis determines your capital gain.You may qualify for the primary residence exclusion (up to $250K single/$500K married) if you lived there 2 of the last 5 years.

However while people in Windsor doesn't have the luxury of high paying jobs that GTA residents have, is it just a temporary fever of buying houses, or there is really something going on in this city ? 

@Jennie Berger The RS-3 Zone allows for Single-Family residences & 2-Flats as "Permitted Uses"; however, the RS-3 Zone still requires 2,500 sq.ft. of lot area per unit (i.e. 5,000 sq.ft. for a 2-flat) unless the lot meets the exception for the characteristic of the block as previously mentioned by Nicolas; then it can be reduced to 1,500 sq.ft. per unit in order to construct a 2-flat.

Investment Info:Single-family residence buy & hold investment.

The other nice benefit of 100% VA disability is that you pay NO PROPERTY TAX on your primary residence.  

Quote from @Ven Bud: After hearing to lot of bp episodes on negative cash flow, I have a question.I am currently living in my primary residence and planning to purchase an investment property, and obviously it is going to be a negative cashflow (bay area), but I am of the opinion that as long as the rent on the investment property is atleast going to be greater than my current primary residence mortgage it can still considered as positive cash flow investment.The investment property is going to be in a much better location (for office commute, bay area proximity) than my primary residence.

Investment Info:Single-family residence buy & hold investment in Seminole.

Investment Info:Single-family residence buy & hold investment in Fort Worth.

My idea is to put 20% down on a $1 million property, with the remaining $800,000 paid off over 8–10 years, depending on how much yearly income the seller would want.I’ve seen a lot of discussions about using seller financing for investment properties, but not much when it comes to primary residences.