As far as rent goes, do you have a cash flow target you look for or a formula that you could share?

In Illinois the amount a tenant pays varies by some formula that Section 8 uses based on the tenants earnings.

Do your due diligence on every property, and NEVER MESS WITH THE MAX ALLOWABLE OFFER (MAO) FORMULA. 

I moved to Oviedo FL 3 months ago from the beautiful island of Puerto Rico.Last year my wife and I took a course in PR with The Flipping Formula guys and that blew our minds off.. we both think we would enjoy this.We were not able to pay additional education with them and tried making this work, but I found my self confused a lot and they had some really cool tool to help find good leads, but that think work for PR and after spending all my savings which wasn't much I decided to hold for a bit until I had better guidance and some savings.last summer I came to Orlando and took the Real Estate Associate class and passed it and got that ready.

.+/- 30% : All the sites have their own proprietary formulas for getting the numbers, but you can actually manipulate them yourself.

What formulas they use, how much their markups are.

It all sums up per column at the bottom.If I was guessing, one takes the gross rents and subtract all the monthly cost, plus rehab cost to see if the portfolio has postive cashflow each month after monthly cost and rehab cost.Just wanted to see if anyone knows about it, and is my assumption correct, or is there some other formula used to product results, like debt to service ratios resulting number, and creates a threshold they are looking for? 

Using MAO 70% - rehab formula.

There is nothing wrong with that formula.

Logically, you'd get to a point (if you aren't changing your living standards) that you could create a mathematical formula that grows exponentially with the number of homes you have paid off.