Taxes, corporate structures, privacy laws, mortgage qualification, etc, etc. are all areas which differ from the states.Anyway, just wanted to welcome you to the investing community!

A property can only actually increase the cash flow it puts out one of two ways...either increasing rent or decreasing expenses.

Sometimes it can blend higher over time with rental increases or buying bigger type properties where the cap rate purchase is higher.  

If I add in rent income, it would not be enough (because rent income is about $300 and mortgage is about $500 per month (with tax and insurance)), it would increase debt to income ratio). 

‘Hidden factors’ that increase valueFrontal curb exposure - is your house narrow or broad in comparison to others?

Value is generally tied to location,tenant type, rental increases, strength of guaranty, and length of primary lease term with no early termination rights.By the way it doesn't matter if the company has 1,000 locations.You could have parent corp. guarantee, subsidiary of say 100 locations, or they set up LLC for just that one location.

I am in the process of having a duplex built in Houston and I may have the option to add some amenities which will increase rent.

Our plan is to move forward initially with buying single family homes in the Chicagoland area, and then use the BRRRR method to raise the equity in them so that we can grow larger and larger by buying properties with the increased equity seen after each renovation.

They pay power at ____ monthly and when they move in if water useage increases more than a minor amount I adjust their utility payment.

If they were rented to tenants and that essentially just increased your rent then absolutely include it.