Professional responsibility- Unauthorized Practice of Law- Ethics

I am in my last semester of law school in Tennessee ( I graduate in December), and I just got a job at a TN corporation. They do not have any attorneys on staff here, and they want me to be their attorney once I pass the BAR exam in February (to read contracts and help negotiate terms of contracts). Right now, I am just helping them with compliance related issues that I am confident do not constitute any ethics violations. However, I have a few main concerns about their job offer. There are no attorneys on staff here, and I would be the only legal person here. What are the things I should be worried about and how can I avoid the "unauthorized practice of law." Is it possible to be an attorney and work at a corporation with no formal legal department besides myself? Please help because I really like this job, but I'm afraid I won't be able to work here. - Is this your question? Add additional information