A good real estate agent is always worth the fee you pay. When my husband and I left Houston in the late 1980s, it was the worst possible time to try to sell a house. The economy was terrible, most of the people in our neighborhood were in bankruptcy, foreclosures were at an all-time high, and there were thousands of houses on the market in our end of Houston. We hired a real estate agent who really made a terrific impression on us. She was energetic, focused, and organized. She told us she had already sold millions of dollars of homes that year, and she had the closing statements to prove it. Her average time-on-market was three months, and her average sales price was 95% of the asking price. We gave her the listing and agreed to pay her a whopping 8% commission.
Three weeks later, we had a signed contract for the full appraised value, which was also our asking price. I did not for one second resent paying that agent an 8% commission. If the house stayed on the market for a year, like those of most of my friends, I would pay far more than 8% in holding costs, interest, taxes, insurance, and utilities.
So, my short answer is, you do not need a real estate agent if all he or she will do is put a sign in your yard, list the property on MLS, and wait for the phone to ring. If you can find a good agent, though, spend the money. You are a flipper, after all, and you must sell that house as quickly as possible.