I had almost 50 inquiries about thIS rental and had more than a dozen quality applicants by the end of the 1st open house.

What credit score do you typically require for applicants? 

Going forward, make sure you check with the previous 2 (two) landlords of any applicant. 

If you don't want to do that, go to the moulding section at a big box and try to find some simple wood moldings and build out the sides of that cabinet (it will blend in with the rustoleum finish)For refinishing I would use Rustoleum cabinet transformations. it holds up well the application is pretty dummy proof and it looks great (I've used Kona, Chocolate, Rustic, Cordovan, Expresso, and Pure White--- Kona with no glaze is my current favorite).

Should we pay the application fee in this case ? 

On top of that, the application she sent over was a very poorly put together file with numerous spelling and grammar mistakes.

Create a LLC with me as trustee 2. submit my application for opening i401k3. once documents are received from 401k company, I open checking account at bank of my choosing4. once funds clear, my RE investing journey begins.Is this correct?

I feel like this is a great time for me to take advantage of this opportunity to learn with real world application and also hopefully start building wealth at a very early age (I am 19, turning 20 next month).I am open to any advise, criticism, information, motivation etc. as I am a sponge ready to take in as much knowledge as I possibly can for when/if I decide to go back to school from my endeavors.

For me that is the main reason for an application fee.

(Less than an ideal choice)4) a hard money lender that you already have a well established relationship with and can confirm he or she will fund before the auction ( weak choice) Any other type of loan that would require an application and approval is a no go.