The Ultimate Guide to Finding the Best Agents for Real Estate in Knoxville TN Finding the best real estate agent can be a challenge. 1.1 Why You Need a Real Estate Agent in Knoxville, TN 1. Experience and Expertise – Knoxville realty agents have a wealth and knowledge of the local market and neighborhood conditions. They also know how to value property. They can provide valuable insight and guidance throughout the purchasing or selling process. 2. Access to Listings: Real estate agents have access to a wide range of property listings that may not be available to the general public.