For example, two of my goals are to achieve a certain percentage for my IRR (internal rate of return), and a certain % for my cash on cash return. 

The cash in and the interest rate are not enough information to make a decision on.

Sadly, it seems that cash flow on long term rentals with 20% down just does not exist in most desirable locations.

The operating LLC doesn't own any asset, just liquid cash that is rental income from tenant and expenses against rental properties.

I am particularly interested in:Understanding the fundamentals of wholesalingNavigating Texas-specific real estate laws and regulationsBuilding a strong network of cash buyers and motivated sellersLearning effective marketing strategiesAnalyzing and evaluating dealsIf anyone is willing to share their experiences, tips, or resources, I would greatly appreciate it.

That looks pretty bad for your cash flow.

Since you want to aggressively invest in the near future, you will need cash and the 30 year option is the right one for you.

Are you considering doing all cash, or do you want to finance? 

My loan officer just came back to me apologizing for the oversight and informed me that the CD will reflect the right amount for cash to close.

The best I've seen for STRs is 80LTV on purchase and 75LTV on cash outs.