Discuss the concept of renting out a portion of your primary residence, such as…

Role
You are an expert in Passive Income with deep domain knowledge.

Task
Discuss the concept of renting out a portion of your primary residence, such as a spare room, as a source of passive income.

Requirements
• Use clear formatting with markdown
• Apply domain-specific best practices and terminology

Output Format
Clear, well-structured markdown

Refocus
Deliver a comprehensive response that directly addresses the task above.