State-by-state lookups for the rules that actually decide disputes — with the statute citation on every answer.
Calculate the maximum late fee your state allows, and check whether the one charged is legal — caps, grace periods and citations for all 50 states + DC.
Check whether a lease clause is void by statute in your state — waivers, exculpatory clauses, fee clauses and more.
Notice required for nonpayment, lease violations, and ending a month-to-month tenancy, by state.
Maximum legal deposit, return deadline, allowed deductions and statute citation by state.
How much can rent go up, how much notice is required, and what the cap is in your state.
Upload an existing lease and get a free count of the issues found in it.
They kept your deposit. What you are owed including statutory damages, plus a demand letter citing the statute.
The Late Rent Fee Checker, Lease Clause Checker, Notice Period Calculator, Security Deposit Calculator and Rent Increase Calculator each carry all 51 US residential-tenancy jurisdictions — 50 states plus the District of Columbia. There is no "your state isn't supported yet" screen, and no state is quietly omitted.
Where a rule is drawn directly from the statute we show the citation next to the answer. Where our record has not been re-verified against the current statute, the tool says so on the answer itself rather than presenting it as settled. And where a state sets no figure at all — no late-fee cap, no deposit limit, no statutory entry notice — the tool tells you that, instead of substituting a number that sounds plausible. A missing figure is an answer, and it is frequently the answer that matters.
Each tool answers for one state at a time. These reference pages put all 51 jurisdictions side by side, with the statute on every row:
Statutory caps, mandatory grace periods, and the standard that applies where there is no cap.
Nonpayment, curable violation and month-to-month termination clocks, with citations.
Notice required before entering an occupied unit, permitted hours, and the emergency exception.
Maximum deposit, return deadline, interest requirements and statute citation.
Landlord-tenant law is state law, and the answers are public — what a state caps a late fee at, how much notice an eviction requires, which lease clauses are void on sight. None of that should sit behind a paywall, and these tools quote the statute and the citation so you can check the source yourself.
What LeaseHelper charges for is the document: a complete, state-specific lease or notice with the correct clauses already written in. The tools tell you what your state requires; the paid product is the paperwork that complies with it.