If you walk into a new construction sales office, the sales person you meet will be your representative. Remember just like a regular listing, the agent at the house or sales office represents the seller. You can have your own agent to help you through the new construction process and it doesn't cost you anything as the contractor/seller has already agreed to pay your agent's commission.
An agent can go through the process with you and explain the contractor's documents. It may be more to your advantage to use their lender as you can usually get discounts or closing cost credits. An agent can help you pick out options for flooring and upgrades which can really add up if the sales rep talks you into more than you need.
So before going into a sales office, either have your agent go with you or have their card so you can give to the sales person to let them know you have your own agent.
Check out this link for new homes. I like DR Horton. They are reputable, and their homes are well made and affordable.
https://www.drhorton.com/texas/fort-worth/springtown/sculptors-park
