What is prohibited when conducting residential real property assignments regarding opinions of value?

The prohibition against basing opinions of value on race, color, or national origin aligns with Fair Housing laws and ethical appraisal practices. Appraisers must adhere to the principle of providing unbiased and objective opinions of value. This is essential to ensure that all individuals, regardless of their racial or ethnic background, are treated fairly and equitably in the housing market.

Using factors such as educational background or the age of the property owner could introduce biases that the profession seeks to minimize, but they do not carry the same legal prohibitions as discrimination based on race, color, or national origin. Similarly, while relying on sales history of the property is a common and valid method for determining value, it is not inherently prohibited unless it leads to discriminatory practices. Thus, the emphasis on avoiding any influence of race, color, or national origin underscores the commitment to ethical standards and compliance with anti-discrimination laws in real estate practices.