I would recommend starting in your backyard and hone your skills if its possible, I know some markets have an extreme HCOL which may make it unfavorable in your case.

We are planning to live in one unit and rent the other half out of a duplex, then rinse and repeat this process as many times as possible over the next 5-10 years.

I have several clients who live overseas and when these guidelines were updated, we had to switch their financing strategies quite a bit. 

Depending on how long it takes you to save up the amount, you might want to also allow for inflation on that amount for your continued savings.[2]   Read Rich Dad poor dad.[3]   Think about getting a second job - possibly a temporary job - save a 100% of the money.Just my 2 cents.

Off-Market: I was working for a storage facility and the owner needed help removing his stuff because he was moving How did you finance this deal?

I do get nervous with finances and want to be financially responsible.

You may also want to look into 2-4 units as those are the easiest to finance and help you grow faster.

Doing it all over again, I would use a investor focused agent.How did you finance this deal?

Just saw the news , over 1000 structures destroyed and possibly 28,000 in danger . 

Most of our newer investors approach 2-3 lenders to discuss loan options.Some lenders recommend making your financing inquiries within a 45-day time period to avoid larger drops in your credit scores.All the best!