My wife supported me because I explained the math to her. 

Tiffany, you'll probably find that subbing out more of the work that your husband is doing will allow you to grow faster than hiring an employee, but it just becomes a math problem to figure out if increased labor costs are offset by the higher overall revenue generated by doing more flips each year.

Below is the math (all in % of house value):Rent: 12.0%Taxes: -2.8%Average Long-Term Maintenance & Repairs: -1.7%House Insurance & HOA: -1.6%Average Vacancy/FinderFees/Tenant Issues: -1.0%Property Management: -0.8%Total Average Annual Return: 4.1%I have heard landlords making 10% (no leverage) and 20-30% (with leverage). 

Usually they take about 10% off of the assessed value for owner occupants, so you might have to do a bit of math to figure it out.

@Clayton Mobley  I have not run the math so going to wing it right now.lets say you have 150k to invest. 

My math says you would be making about $3200/month in rent (if they all pay on time, and nobody vacates), which after expenses (inc.

I am a math/finance/stats/numbers person.

(for this and remaining spreadsheets, somehow my math above was off a bit, but still negative cash flow with 0% cash on cash return.)What if I lower my down payment: https://docs.google.com/spreadsheets/d/1d1qYFDdLq2...What if I lower the offer price: https://docs.google.com/spreadsheets/d/1NTP0pVA9Np...

You could do the math and see if that would cover your mortgage costs.  

When I do the math, 20% off of $340 is $68 and the final price should be $272.