As a seller, you have a choice of marketing your home yourself as a for-sale-by-owner or "FSBO."
Your other option is to hire a professional real estate agent to assist you.
Either way, you should have a marketing strategy including where to best advertise, available property showing hours and sale price.
For more information about whether or not to use a professional real estate agent, view Using a Seller's Agent.
Whether or not you decide to have your home professionally marketed by a real estate agent, you should consider hiring a real estate attorney to assist you with review of necessary contracts including an offer to purchase and purchase and sale agreement.
Once signed by both the buyer and seller, both forms can legally bind you to the agreed upon terms and should be reviewed by a real estate attorney prior to signing to ensure that the conditions and language does not negatively affect your sale.
Don't rely on real estate agents or other professionals to review legal documents on your behalf.
Only attorneys are trained and authorized to give proper legal advice.
In addition to other professionals mentioned here, you may want to consider hiring an appraiser to evaluate and certify the true market value of your home prior to sale.
Using the appraisal as a marketing piece can prove value and bring about a quick sale to an eligible buyer.