You can hit the ground running with a large cashflow 

If you had 10 years left on the current note and the 5 year balloon hit. 

Efficient Renovations: Focused on high-impact upgrades like modernizing the kitchen and bathrooms, improving curb appeal, and installing energy-efficient features, which are highly desirable in this competitive market.Optimizing Layout: Evaluated the property's layout to ensure it met modern buyer preferences, such as creating open-concept spaces.

I really like this and I will follow it.One last comment, if I want to focus on finding deals, what are the most efficient/productive ways to find them?

That means with MFU, you can hit those discounts faster.

In the next 5 years, we can buy one property per year with 25% down (~100K), and perform the same operation of using cash-flow for paying off properties next 15 years and we will have $15K/month net-profit which hits our goal adjusted for inflation (assumed at 3%).

Once you gain that experience, it may become more efficient to delegate the task rather than managing it on your own.

Mark Allen looks like you hit a goldmine for demand!

Not at all-Just deliver what he took money for -Plans for an efficient functioning of the building.

At a high level, this is generally the path people take - we see a lot of people have success in this route - start building the portfolio with banks, low down payments, and then **generally** when you hit around 5 or so properties - it starts to make sense to switch over to LLCs, its too hard to qualify/deal with paperwork of banks and switch towards private lenders like DSCR Loans - (LLC friendly, easier) to scale past 5 or so.