Do you just attain the average interest rate and utilize that for your projections?  

It is certainly attainable, however you will need some things in place to make it happen: 1) Financing- unless you have unlimited resource of cash, you'll need other resources.

I would like to attain the largest size property I possibly can 50-75 units or $2-3 million.

That It's a good way to gauge if the cap rate I want to attain is unreasonable and to gauge what a fair price would be based on it's operations and see if I'm getting a good deal or not based on the current trends. and whether my offer would be considered low-ball, fair, or too high. 

They are measurable and attainable.  

I set a pace for myself and said I'd like to have $10K passive income because its attainable within a years time, atleast I think, being in my situation.

.$240,000 invested with a couple months of me doing most of the construction work and then cashflowing $4000+ a month.Am I at risk of not being able to attain a mortgage when I complete the BRRR? 

I have a young family and recently attained my real estate license.

Is 2% attainable if you aren't in a war zone?

@Fernando Avila it really depends on what you define as "worth the price" if your expectations are unrealistic you won't find anything, however if you know that what you are looking for is attainable you should have no issues.