1. Key points
- The federal Fair Housing Act bans housing discrimination based on race, color, religion, sex, national origin, familial status and disability.
- Security deposit limits, return deadlines and itemization rules are set by state and local law and vary widely.
- Most states recognize a duty to keep rentals habitable (safe water, heat, working plumbing and electricity).
- Notice rules for landlord entry and eviction also vary by state.
2. Document everything
Take dated photos at move-in and move-out, keep repair requests in writing, and save rent receipts. Local tenant unions and legal aid organizations can explain your city's rules.