I would think about maybe house hacking where you rent out a part of your home who will then pay part of your mortgage, this will help you save much more money and help you achieve your goal. 

Any insights, advice, or suggestions on how we can achieve our investment goals while safeguarding our assets would be greatly appreciated.

I do worry about the quality of tenants on the class-C properties, but I'm also no stranger to this stuff so if that's what I have to get into in order to achieve my goals, so be it. 

My ultimate goal is to make profitable deals and achieve financial success through strategic investments.

Thats going to determine some of the decision making I'd think - you could always partially pay down the loan to achieve cash flow or breakeven or even a little relief - could be the best move if you think the property is well located and an otherwise good long term investment

On residential MF (4 units and less) purchased from MLS you can achieve just a bit better than 0.5% ratio.  

Despite these challenges, we achieved a substantial profit.

Despite these challenges, we achieved a substantial profit.

Overwhelmingly Positive Testimonials and Reviews from StudentsThe "reviews" for a guru come exclusively or overwhelmingly from individuals who create accounts on BiggerPockets with seemingly no other purpose than to dispense undying love and/or personal loyalty to the guru, with lengthy commentary about the complete life turnaround that spending $5K - $100K had in a very brief period of time, rather than a rational assessment of the pros and cons of the program and their outcomes achieved so far.  

What is what you would like to achieve and track?