How do I approach this internship opportunity?

[Joe Calderon]

I found online an application for a 3-month unpaid internship. I definitely want to work here because I know I can sell for this broker. This broker has 28 associates working for him. What's given to me is one-on-one coaching. Also, a reimbursement is given if I decide to get my license, which I want to do because I want to eventually invest. What better source is there than working as an agent, seeing what goes on behind the scenes?

I do not want to look like someone who is waiting for that response by applying online. I'd rather go in the office tomorrow, in a suit and let the broker know I want to work as an unpaid intern and that "I'll do difficult, time-consuming work so you're able to concentrate on more revenue-related pursuits" and "I just have to be taught it, and I'm intuitive. But I will still ask questions whenever I have trouble understanding something". 

I am not able to print the resume and cover letter due to a lack of a printer, but it's on Google docs. My question boils down to: should I go into the office without any prior knowledgI found online an application for a 3-month unpaid internship. I definitely want to work here because I know I can sell for this broker. This broker has 20 associates working for him. What's given to me is one-on-one coaching. Also, a reimbursement is given if I decide to get my license, which I want to do because I want to eventually invest. What better source is there than working as an agent, seeing what goes on behind the scenes?

My question boils down to: should i just go in as a cold approach to the broker that I'm going to apply as an intern?