If they can lie about you lying to them, having a lawyer isn't going To protect you. They can just say you lied to them when they talked to you some other time

If they can lie about you lying to them, having a lawyer isn't going To protect you. They can just say you lied to them when they talked to you some other time without lawyer present. If all you need is a witness, why not record the conversation on your phone. I am not a lawyer and this is not legal advice.