Let me tell you that it doesn't save that much time because it isn't that difficult. It is certainly easier than it used to be and you can find the information you need on your states website. In Nevada I needed to file a fictitious firm name which is $20, get an Employee Identification number (EIN) which is free, register with the Nevada Tax department, and the business license which is $200.
The company I was going to use would have cost me nearly $800. Some of the charges were for items on the list that are free, and require ZERO special skills. MY point in this post is to tell you that even though it may be intimidating and seem difficult it really isn't. Google will get you where you need to go. That is exactly what I did and it is going to save me a lot of money.