The various U.S. appraisal groups and international professional appraisal organizations have started collaborating in recent years towards the development of International Valuation Standards. This will facilitate global real estate appraisal standards, a much-needed adjunct to real estate investment portfolios which cross national boundaries. Some appraisal groups are already international organizations and thus, to some extent, already incorporate some level of global standards.
For example, single apartment buildings of a given quality tend to sell at a particular price per apartment. In many of those cases, the sales comparison approach may be more applicable. On the other hand, a multiple-building apartment complex would usually be valued by the income approach, as that would follow how most buyers would value it. As another example, single-family houses are most commonly valued with the greatest weighting to the sales comparison approach. However, if a single-family dwelling is in a neighborhood where all or most of the dwellings are rental units, then some variant of the income approach may be more useful. So the choice of valuation method can change depending upon the circumstances, even if the property being valued does not change much.
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.
The income capitalization Approach (often referred to simply as the "income approach") is used to value commercial and investment properties. Because it is intended to directly reflect or model the expectations and behaviors of typical market participants, this approach is generally considered the most applicable valuation technique for income-producing properties, where sufficient market data exists.
Historically, most valuations in Israel were statutory valuations (such as valuations performed for purposes of Betterment Tax, a tax administered on any gains accruing to the property by way of changes to the local planning) as well as valuations performed for purposes of bank lending. Since Israel implemented the International Financial Reporting Standards (IFRS) in 2008, the profession has been engaged in performing valuations for purposes of financial reporting.
The Trainee Appraiser level does not have an experience requirement. Each Trainee Appraiser must be supervised to get the required hours of experience before applying for the Licensed Residential Appraiser level. Locating a certified appraiser is a very important step to becoming an appraiser. The trainee and supervisory appraiser must keep a log of work completed that will be reviewed when the trainee applies for any license to the state regulatory body. Effective January 1, 2015, all new Trainee (Beginning) Appraisers and Supervisory Appraisers are required to complete an approved Supervisor/Trainee course before they will be able to log experience hours.
While no appraiser is infallible, his or her opinion of the value of your home is informed by rigorous training, numerous tests, several years of on-the-job experience and required continuing education. They are also required to substantiate every finding in their reports that could influence a home’s value. Appraisers and their employers (often appraisal management companies) are heavily regulated. Consequences of issuing deliberately misleading or biased reports can be severe, so appraisers work hard to remain impartial and keep personal value judgments and prejudices out of their work.