If you want to have $50k left over after paying your mortgages, you'd need to have a NOI of $300k/yr (1.2x-x=$50k, where x is your mortgage payment and 1.2x is your NOI)Next, if your NOI is $300k,and from my experience SFRs have between a 50-65% total expense ratio over time, that means the gross rents will have to fall between $600k-$857k/yr or 50k-$70k/month. 

And have gross yields around 10%, Coc has high as 14% and cap rates around 8%.

If that is gross rents your numbers are worse.

But generally you can take your Monthly Gross Income lets say $1,000/month and subtract your debts (i.e $100/month car, $100/month student Loan...) leaves you with $800.00/month. 

I could have found that myself, but it's always more direct answer from an accountant and because so many answers are mixed between Canadian and US search results, it really is easier to just ask an accountant for factual information.It's another thing if I were to say "can you help me calculate my cost of acquisition and total everything up, I need help with my gross revenue as well, can you also throw in net revenue?

For example, a rent ready or fully occupied duplex will sell for $50k and gross $1200/mo in rent. 

@Shane H.That’s cool, except those of us that dont own dogs can smell them. my mother in law is an absolute fanatic about keeping her dogs clean and her house, except I can still smell them, and it’s gross to me.

For starters, what's the area, gross rent, NOI?

With the new payment I calculate my gross cash on cash to be 29%.

We would be doing these deals together and our combined gross income is $190k/year.I have ~$80k of capital and am looking for the best way to optimize my investment.