Review My Startup Idea for Biz Competition

I am taking part in a business plan competition at my college next week and I was wondering if HN could give me some feedback on my landing page: www.MailTheHouse.com

Basically, I want to create a web and mobile application where people can write a formal letter they want to their State/Federal representatives but mail it using the internet. I'm going to have an automatic printer and have someone who will manually fold/stuff envelopes. My goal is to secure advocacy groups as my clients and allow them to coordinate mass mail campaigns.

What do you think?