The rates are substantially better, it's zero down, and the Funding Fee is less over time when you compare it to conventional and FHA mortgage insurance premiums - it's mathematically superior, however the old guard of agents and lenders failed to realize that or take the time to understand. 

Ultimately I want to be so good at underwriting by the time I am looking for deals for myself  I can spot a good or bad deal fairly quickly at least from a mathematical standpoint.

I always always always purchase ARM because of the amortization and faster equity building, but I dont buy 5 years because it's too fast, I purchase 10 year ARM.I could still get 10 year ARM for high 4% in this market LOLI am with your accountant that I always use ARM but why I do that is becoz I know mathematically my property would appreciate at x% rate at what year and my calculation is so damn accurate the realtor confused when I told it because it blows up the Zillow number.So here's the trick, make sure your appreciation rate at year 5 and year 10 is faster than your mortgage rate.For me, the rough calculation is like for $2200 monthly mortgage, the appreciation is like $4500 per month.

People trying to make this mathematical are going to end up just being slumlords dealing with problem after problem, and worrying about pennies costing dollars. 

That's really thoughtless.I have a  B.S. degree in Aerospace Engineering, B.S. in Applied Mathematics, a B.S. in Mechanical Engineering1 M.S. in Mechanical Engineering, and a M.S. in Engineering management.I am a scientist and an engineer.

@Gerardo Hernandez I didn’t tell you to do this... but swipe the photos and post a listing on Facebook marketplace at the rent amounts that would mathematically make sense.

Blessings,  Mathematically speaking, house price depends on :1. location2. time3. condition4. supply and demand ratio5. the bid A house in particular block usually has range between $A to $B ; the low range usually less updated and B is more updated.

I guess what I mean is, mathematically speaking, which option results in the greatest financial gains. 30 mortgaged homes in 10 years, vs 10 mortgage free homes in 10 years.

It's the strategy I follow, and mathematically it's an amazing model. 

Accuracy is not a problem since it's a simple filter and with enough sources I can mathematically account for the error rate.