Martina Birnbaum/Shutterstock Looking for a new home can be a huge process and stressor for buyers, sellers, and real estate agents. From listing, staging the house, meeting with an agent, and showing it, it's a time-consuming endeavor for everyone involved. One entrepreneur and real estate agent himself sought to make the whole thing a bit easier on Season 8 Episode 8 of "Shark Tank." The TOOR Lockbox started on Kickstarter before appearing on "Shark Tank." It got a deal on the show, with two Sharks interested in the product. However, as it does happen from time to time, the offer doesn't appear to have officially closed. While the Sharks did get excited about the idea, and it shipped through Kickstarter, it is no longer available. The TOOR Lockbox and app were designed to make home buying simpler. The lockbox acted as a container for keys that was placed on the front doorknob of a home.…