As "options real estate" explained, it's going to vary region to region.
Here, in Illinois, we use real estate attorneys on the majority of our transactions. Having been involved in hundreds, maybe thousands of transactions I am certainly familiar with many of the intricacies and pitfalls involved with a home sale/purchase. I have heard all the questions, and listened to the attorneys solutions. So I could easily sell/purchase my own home, without the help of an attorney.
And yet, I would hire an attorney, at my own expense, each and every time. They're worth every penny. I have seen so many instances where an attorney has helped extricate a client from a sticky spot, or found a simple interest rate error on their loan documents, that I might easily have overlooked (my eyes glaze over when going through those loan packets).
A real estate attorney in our area runs from as low as $300.00 up to about $1,000.00. An excellent investment, in my opinion.