Thanks for the quick response! For clarification, the property is a residential property. Although I should also add that it was rented out for the last two years due to the fact that I had to move due to a job change.
Upon re-reading the question, I do see that the property is referred to as a "house", so it would be a residential closing, which would usually be a flat fee. In my 28 years of practicing real estate law, I have never charged any client more than the flat fee I originally quoted (plus expenses)
Not have I ever seen any other attorney charging additional monies. As an attorney, sometimes you get a deal that ends up being very easy which closes with very few complications and you end up thinking to yourself: "That was an easy way to earn a fee!" Other times, a deal gets so complex that once it actually closes you are kicking yourself for not charging the client a lot more! I like to think that in the end everything evens out and over my career I will earn what I am supposed to earn.