You don't need to know everything to get started; you need a foundation to build on, and the rest will come through experience and then refining your education.You can build a basic understanding of investing in 3-6 months.

You will want to fully understand the tax reporting burden you will face. 

From my understanding, I need a Proof of Funds in order to get under contract. 

I just want some outside eyes to help me understand if this deal is what I should expect to find as I build my portfolio.I plan to buy and hold long term.

Understanding the interest rate, loan maturity date, and any prepayment penalties will help gauge urgency.3.

Commercial real estate deals involve larger sums of money and require a deeper understanding of the industry, so it's important to work with someone who has expertise and experience in this space.

Explain to me, so I understand.

Quote from @Max Martynenko: Thanks for your understanding and sense of humor!

But from my understanding, the captial gains exclusion has two main criterias - you must have owned the home in the last 2 to 5 years and must have lived in the home in the last 2 to 5 years. 

Multifamily is incredibly complex and if you don't understand the metrics or calculations behind it, you're going to get burned. if you're just plugging numbers in until it "goes green", you are either going to miss out on deals or buy something you shouldn't.