As I am writing the business plan, the biggest thing that I am struggling with is the mission statement. This should sum up your business neatly with what you are about and plan to do. I spent the whole weekend fine tuning mine, running it by people, figuring out what core values I want my firm to hold. I decided that my whole model will be based upon scripture in a round about way. In Isaiah 1:17, the bible defines justice for us. My model is going to paraphrase it to: do right, seek justice, help the oppressed, defend the cause, and fight for rights. All that I do, all that I promise will be based upon those words. If it doesn't fit in with that model, it's not me.
If you are thinking you might open your own practice, think carefully about this. Think about what you will put out there for the world to think of your business. Choose wisely, choose carefully.