So I’m going in to a 50/50 partnership with someone it’s my business but I’m giving them the business name and we will sign a form agreement

We will get the form notarized stating that I’m the owner of the equipment/food cart that we will be using. But we will sign a agreement form and get it notarized. What should I write so that when the 6 months is over everything belongs to me such as the business name and the food cart, the cart belongs to me the but the whole setup is mine I just need him to put everything in his name to do the initial start up and other things I’m needing to do but we will just be working together but what should I put on the agreement. All the profit will be shared 50/50. What should I put on the letter?