
If the damages involve minor damage to your car, you need not to retain a lawyer unless the insurance company is not dealing with you right. But if you sustained an injury after the accident, it is best to hire an attorney.
A good Dandridge personal injury attorney should have better ideas on how to build your case, negotiate and bring your case to trial. You can have the option of not hiring a personal injury lawyer and talk to the insurance company yourself but most if not all insurance companies would not give in easily to a claim.
It is just natural for you to pay for the lawyer but the lawyer knows already better than you do meaning he would ask for a bigger settlement from the insurance company and you get what you should get and he gets what he should gets.