You can't just take what you paid and start charging interest on that figure, because part of what you paid was already accrued interest.

It's a great time to get started.   

We have renters there now and they cover the mortgage with a bit of cash flow ($100/month), but the property is going to need some more major updates (windows, roof, HVAC, siding) within the next 5 years as they are starting to be at the end of their useful lives.We would like to pay off our primary residence as quickly as possible to “free us” from mortgage payments on our primary residence.My questions are below:1.

I've been going about as long as you have and things are starting to come together and happen for me here in Sacramento.

As I start down one path, I have more questions which leads me down other paths with even more questions. 

For example - I have a duplex that rents for $1350 - the mortgage when I started was $636.

If you feel bad and want to save people money, start with a free pre-screening.

For connecting with local resources like mortgage brokers, investors, and agents, the Austin Real Estate Investors Association (REIA) is a great starting point.

I want to start investing in real estate in America in the near future, since I am not in America, I live in Europe, more precisely in Serbia, any advice and contact will mean a lot to me.

Quote from @Greg Gallucci: I'm starting to look into the Huntsville market.