Most houses that don't sell in a reasonable amount of time are simply overpriced. On the other hand some houses are under priced and sell rapidly. But, the owner gets less than "true value" for his investment. A Real Estate Appraisal professional can help you decide how to price your property to return maximum value to you.
Yes, your Real Estate Salesman can give you his "guess" of what the property may sell for. He may even prepare a CMA (Comparative Market Analysis) to give you a better idea for a sales price. He is not, however, trained to develop an appraisal of the property. He does not have the experience or expertise to develop and evaluate the information necessary to protect your investment value. The Certified Real Estate Appraiser is a professional licensed by the State of Florida to provide appraisals. His only job is to estimate the value of real estate in today's market. He is a disinterested third party who has nothing to gain by suggesting prices which may be too low or too high. He does not collect a commission based on the selling price, only a fee for his service.
If your property is overpriced and sits on the market for a year, you have an additional years expenditure for mortgage, taxes, insurance, etc. This is in addition to that part of your life being on hold for a year. This could be $10,000 or more and you still own the house. On the other hand maybe you have priced it $10,000 or more under market value. It sells the first week, but the money remains in the buyers pocket. Either of these alternatives cost you much more than the service of an appraiser.
Appraisal First Florida can develop an appraisal in a timely fashion which will give you the information to make the best decisions to maximize your return. The decision is yours but you should make sure that you have the best information on which to base it.