90-Day Notice
Definition:
A 90-day notice is a formal written notice that provides a party with 90 days’ advance warning before a legal, contractual, or administrative action takes effect. It is typically used in long-term lease terminations, rent increases, employment separations, or government-related actions requiring extended notice periods.

90-Day Notice Information
The 90-day notice period is designed for situations that significantly impact one or more parties, giving them ample time to prepare, comply, or respond before the action becomes effective. In real estate, it may be used to terminate long-term leases, notify tenants of substantial rent increases, or end tenancy after foreclosure.
In other contexts, such as employment contracts, insurance cancellations, or regulatory compliance matters, a 90-day notice may be required by law or contract to ensure fair dealing and due process. The extended timeframe is often mandated for changes that affect property rights, housing stability, or financial obligations.
Florida Legal Definition
In Florida, a 90-day notice is required under certain laws and administrative rules. For example, **Florida Statute §83.561** requires a **90-day written notice** to terminate a tenancy after a foreclosure sale for bona fide tenants. This ensures tenants have adequate time to relocate following a property’s foreclosure.
Additionally, 90-day notices may appear in Florida condominium, homeowner association, and insurance statutes—such as notice of policy cancellation or nonrenewal—to protect affected parties. The specific requirements depend on the governing statute or contract terms.
How It’s Used in Practice
In practice, landlords, lenders, employers, and insurers issue 90-day notices to comply with legal or contractual notice obligations. For example, property owners or banks provide tenants with 90 days’ notice after foreclosure before requiring vacating. Businesses may use 90-day notices to modify or terminate service agreements, ensuring transparency and sufficient adjustment time.
Proper service of a 90-day notice typically requires written documentation, clear effective dates, and proof of delivery through certified mail or personal service. Legal professionals often assist in ensuring compliance with notice rules to avoid disputes or penalties.
Key Takeaways
- A 90-day notice provides formal written notice at least 90 days before an intended legal or contractual action takes effect.
- Used in real estate, employment, insurance, and administrative contexts to ensure fairness and due process.
- In Florida, a 90-day notice is required under §83.561 for tenants after a property foreclosure sale.
- Provides extended time for affected parties to prepare, relocate, or negotiate before enforcement.
- Must be properly written, dated, and delivered according to statutory or contractual requirements to be legally valid.
Disclaimer: The information and opinions provided are for general educational, informational or entertainment purposes only and should not be construed as legal advice or a substitute for consultation with a qualified attorney. Any information that you read does not create an attorney–client relationship with Barnes Walker, Goethe, Perron & Shea, PLLC, or any of its attorneys. Because laws, regulations, and court interpretations may change over time, the definitions and explanations provided here may not reflect the most current legal standards. The application of law varies depending on your particular facts and jurisdiction. For advice regarding your specific situation, please contact one of our Florida attorneys for personalized guidance.
Visit our legal department pages:
Real Estate Attorneys
Business Attorneys
Litigation Attorneys
Estate Planning Attorneys
Inheritance Attorney
Probate Attorney
Probate & Trusts
Trust • Experience • Results
Ready to Get Started?
Get started with Barnes Walker today.








