Under the federal Fair Housing Act and Massachusetts General Law Chapter 151B, the focus of a discrimination investigation is on the effect of a licensee's actions, not their intent or motive. A licensee’s belief that they were acting in the prospective buyer's best interest is not a valid defense if the action itself was discriminatory (e.g., steering a buyer to or from a neighborhood based on a protected characteristic). HUD's investigation centers on objective evidence to determine if a discriminatory housing practice occurred, making the licensee's subjective belief irrelevant to the legal finding.

A. records of the houses shown and properties suggested to the prospective buyer: This is incorrect because these records provide critical comparative evidence to determine if steering or other forms of disparate treatment occurred.

B. whether or not the HUD Equal Housing Opportunity poster is displayed in the office: This is incorrect because failure to display the mandatory poster can be considered prima facie evidence of a discriminatory practice by HUD.

D. the reports of undercover testers who visited the office: This is incorrect because evidence from testers is a legally recognized and primary tool used by HUD and fair housing organizations to uncover discriminatory practices.

1. Massachusetts General Laws, Chapter 151B, Section 4: This statute details unlawful discriminatory practices in housing. The law defines violations based on the act of discrimination itself, without providing exceptions for the perpetrator's intent or belief. The focus is on the discriminatory act or its effect.

2. U.S. Department of Housing and Urban Development (HUD), Office of Fair Housing and Equal Opportunity, Title VIII Fair Housing Complaint Process: HUD's official documentation on the complaint process outlines the types of evidence gathered, which include "reviewing documents" (like property records) and "conducting interviews." The legal standard applied does not consider the respondent's motive as a defense. The investigation seeks to determine if a discriminatory act occurred.

3. Supreme Court of the United States, Texas Dept. of Housing and Community Affairs v. Inclusive Communities Project, Inc., 576 U.S. 519 (2015): This landmark decision affirmed that disparate-impact claims are cognizable under the Fair Housing Act. This means that a policy or action can be deemed discriminatory if it has a disproportionately adverse effect on a protected class, even without proof of discriminatory intent. This reinforces that a licensee's "good intentions" are not a relevant defense.

4. MIT Center for Real Estate, Course 11.433J / 15.021J Real Estate Economics, Lecture Notes: University courseware on real estate law and economics consistently emphasizes that fair housing laws are concerned with discriminatory outcomes. The curriculum teaches that evidence in fair housing cases relies on testing, statistical analysis of transaction data, and records of conduct, not on the subjective intent of the agent.