I’d recommend focusing on building connections in Denver, exploring local markets, and considering strategies like house hacking or buy-and-hold investments to help you reach your goal of becoming a millionaire by 2027.Good luck!

If you were in my shoes, what real estate strategy would you recommend for scaling quickly (but smartly) so that I can replace a good portion of the W2 income from real estate investing?

What is your recommendation ? 

If you do not have an accounting program I highly recommend STESSA it's affordable and Bigger Pockets recommends it.

Any recommendations on real estate investing course or classes? 

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Now my main issue is I need a fire detection system in a enclosed back porch that leads up to all three floors, but I don't know what's the minimum I would need to be compliant or that the fire marshall is suggesting what he wants or recommends.

I've been recommending www.repstracker.com to my clients. 

The market here offers a lot of potential.I highly recommend making a trip here to get a feel for the different neighborhoods and understand where the best opportunities lie.

I will definitely look into the books you recommended.