One of the most recognized professional organizations of real estate appraisers in America is the Appraisal Institute (AI). It was formed from the merger of the American Institute of Real Estate Appraisers and the Society of Real Estate Appraisers. Founded along with others in the 1930s, the two organizations merged in the 1990s to form the AI. This group awards two professional designations: SRA, to residential appraisers, and MAI, to commercial appraisers. The Institute has enacted rigorous regulations regarding the use and display of these designations. For example, contrary to popular belief, "MAI" does not stand for "Member, Appraisal Institute". According to the institute, the letters "do not represent specific words", and an MAI may not use the words "Member, Appraisal Institute" in lieu of the MAI mark. The primary motive for this rule is to prevent trademark dilution.
Real property appraisers usually value one property at a time, while assessors value many at once. However, both occupations use similar methods and techniques. As a result, assessors and appraisers tend to take the same courses for certification. In addition to passing a statewide examination, candidates must usually complete a set number of on-the-job hours.
In most instances, an appraiser will spend their time determining the value of one piece of property at a time. Building up their expertise in making their assessments often leads appraisers to specialize in a particular area of real estate. For example, a commercial appraiser could focus on the market for office buildings, hotels, retail locations, and other properties that include an income generating quality.

This growth model is the common language of instruction in Pinellas County Schools and can be used as an instrument for self-reflection, assessment, and deliberate conversations among teachers, those responsible for evaluation, and those coaching or mentoring colleagues. It is designed to be used as a tool to define performance standards, to help interpret the teacher's practice, make informed decisions about ongoing professional development and for evaluation purposes.


A property's appraisal value is influenced by recent sales of similar properties and by current market trends. The home's amenities, the number of bedrooms and bathrooms, floor plan functionality and square footage are also key factors in assessing the home's value. The appraiser must do a complete visual inspection of the interior and exterior and note any conditions that adversely affect the property's value, such as needed repairs.

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