Final answer:
A handicapped person under the Fair Housing Amendments Act of 1988 is someone with a mental impairment that substantially limits their ability to live a normal life.
Step-by-step explanation:
Under the Fair Housing Amendments Act of 1988, a handicapped person can be an individual with a mental impairment that substantially limits that person from living a normal life. This definition aligns with the broader legislative trend of extending civil rights to individuals with disabilities, ensuring they are given equal opportunities and accommodations necessary for a normal life. Notably, this Act, alongside subsequent legislation such as the Americans with Disabilities Act (ADA) of 1990, reflected a shift away from narrow definitions of disability that excluded conditions that could be mitigated or controlled.