Hi Chris, welcome to the wonderful world of real estate where we get to solve problems like this everyday. That's what makes it fun.
You are off to a great start getting pre approved to know what "amount" of property you can afford. I am also located in California and invest out of state because of the high sunshine tax California imposes.
Just because you are pre-qualified for 1.2million doesn't mean you need to find a million dollar property. I just did some quick math and you'd have to charge ~$6,000 for the second unit on a million dollar property to break even on the mortgage. There are better cashflow deals out there!
PRACTICE RUNNING THE NUMBERS: Run properties from different neighborhoods, cities, states through either BPs rental calculator or one of your own to get property details such as cap rate and cashflow. Through this exercise you will see what areas match your criteria of property and then compare that to your criteria of where you'd like to live. Maybe the numbers look good but you don't want to live there.
Since you know the Colorado area, search for a duplex in the neighborhoods you know. Do these neighborhoods attract strong tenants? What are the average rents in the those areas? Do those neighborhoods have properties that are in need of work or well kept?
Review the rent prices and neighborhood ratings of other cities you've visited.
You should now have a small range for the purchase price and this will help you easily move through properties to know whether they work for you or not.
House hacking is a great way to get started. Consider purchasing a more affordable duplex, live in it for a year to get your feet wet and see if you like real estate. After that, scale your real estate business as fast as you can.
Cheers!