In todays real estate market it may be a wiser decision to use the service of a professional that can
weed out people that really do not qualify, have possible issues and such and not waste your time.
We sold our home ourselves, but it was years back, a different housing market, and we had an attorney that was on call for us to handle everything, ran financial checks for us and we sold quickly to a relative of an already existing neighbor, talk about LUCK!

I think that
if you are trying to save Money, you may actually spend
more in time, more effort and more aggravation by trying to do it all yourself and it will likely take
longer to sell on your own, the RE people have the "ins" they know who would likely be interested and actually be
able to purchase from you, thus moving it along faster.

And even that is taking longer sometimes...
Good Luck deciding, I think that it can be done on your own, but that it will be much tougher and more expansive in both your time, energy, $, and aggravation, than you may be thinking, at this time in our economy!