Final answer:
The regulatory agency for the operation of condos, co-ops, mobile park homes, and timeshare facilities is the Department of Housing and Urban Development (HUD). The parent agency of HUD is the Executive Branch of the United States government.
Step-by-step explanation:
The regulatory agency for the operation of condos, co-ops, mobile park homes, and timeshare facilities is the Department of Housing and Urban Development (HUD). HUD is responsible for implementing and enforcing federal housing laws and regulations and oversees the operations of these types of properties to ensure compliance.
The parent agency of HUD is the Executive Branch of the United States government, as HUD is a federal agency within the Executive Branch.