I always encourage people to run a few different calculations where the CapX percentage is the only changed variable so that you gain a thorough understanding of what will happen under a wider range of circumstances.

a lot of unknown variables here, you are better off obtaining pricing and quotes from a direct experienced dscr broker who can help you find the best deals with different lenders

I would like a software where I can simply change the variables, put in the email address, and boom, email/pdf off to agent. 

There are lots of variables and no consistency in terms of type of house or sqft prices.

It is in line with the responses I've received, and of course I understand that there are a lot of property/tenant-specific variables. 

Too many variables to know if that's a good deal.

I have put together a 1,3, & 5 year progressive stepping stone goal list but of course as we all know there are a lot of external variables.

You won't scale as fast and it won't be as easy.If you want cashflow, try being a private lender instead as in the current economy, this is a very important position with priority on cashflow.Some other suggestions :Monitor your HELOC interest as they are variable in most cases.

I understand unused reserves is also included but much more variable and anything is icing on the cake! 

.• Planning to increase rent by around 5-8% annually.I've tried using tools like DealCheck, the BP calculator, and creating my own spreadsheets, but I'm finding it increasingly confusing to put all these variables together.