Found an apartment.Know what you're moving into.

State-level rent control and just cause eviction laws — whether your state protects you from sudden rent hikes or no-cause evictions.

Your state's maximum deposit, return deadline, and whether landlords must pay interest — know your rights before you hand over money.

How much notice your landlord must give to end a month-to-month lease, and whether just cause eviction protections apply in your state.

What share of renters in this county spend 30%+ or 50%+ of their income on rent — a signal of how tight and expensive the local rental market is.

Year-over-year change in HUD Fair Market Rents for this county — shows whether the rental market is cooling, stable, or heating up fast.

How the area's median renter income stacks up against HUD Fair Market Rent — tells you whether a typical renter here can afford the going rate.

311 complaints for heat outages, rodent infestations, mold, and plumbing failures near this address in the past 2 years (NYC, Chicago, LA, SF).

NYC Local Law 69 requires buildings to report bed bug infestations annually — check this building's history before you sign (NYC only).

The median age of renter-occupied homes in this county. Units built before 1978 may contain lead paint — landlords are required by federal law to disclose known hazards.

Princeton Eviction Lab tracks filing rates by address in many U.S. cities — high rates can reveal landlord behavior patterns before you sign.

County assessor records are public. Look up who actually owns the rental — an individual, an LLC, or a shell company — before you hand over a deposit.

If the landlord is an LLC, your state's Secretary of State registry shows who is behind it — registered agent, formation date, and principals.

Building permit history is public record. Unpermitted renovations and open permits can reveal compliance issues a landlord may not disclose.

Code violation and complaint history is public in many cities. Outstanding habitability orders are something landlords should disclose — but often don't.

What share of housing in this county is renter-occupied — a low share means fewer options and typically less tenant bargaining power.

How much of the housing supply is in buildings with 5+ units — gives apartment seekers a sense of how many true apartment options exist.

Whether the address sits in a Special Flood Hazard Area — flooding can destroy belongings and displace tenants even when the landlord holds the insurance.

Current air quality index near the property — relevant for anyone with asthma, allergies, or young children.

Synthesized score across highway, railroad, and airport noise sources — a key factor in apartment living quality.

Bus stops and transit stations within one mile — a direct signal for car-free livability and walkable daily life.

Proximity to daily destinations — shops, transit, parks, restaurants. How much daily life at this address depends on a car.

Distance to the nearest grocery store — a daily-errand indicator for how car-dependent life at this address will feel.

Estimated violent and property crime rates for the local area compared to national averages.

ISPs and technologies serving this address — fiber, cable, DSL, or fixed wireless. Critical for remote workers.

Average one-way commute for workers in this tract — a question many renters wish they'd asked sooner.

County-level predicted radon levels. Radon can accumulate in basement units and first-floor apartments.

Modelled risk that wildfire would reach this location — relevant for renters who may need to evacuate quickly.

Health-based violations against the water system serving this area in the past 5 years.

Distance to the closest school and how many are within five miles — practical for families with children.

Distance to the nearest park, nature reserve, or recreation area — quality of life for outdoor access.

Historical days above 90°F — increasingly relevant for renters in older buildings without central AC.

Climate-driven moisture pressure based on 30-year precipitation normals — a major factor in indoor air quality for renters.