Owning a rental property comes with its own vocabulary, and a lot of it shows up for the first time exactly when you need it most: mid-lease, mid-dispute, or mid-conversation with an insurance agent who assumes you already know what “loss of rents” means. Does that sound familiar? You are not missing something obvious. These terms simply are not taught anywhere before you need them.
We put together this glossary from the questions owners actually ask us, not from a generic list of real estate jargon. Whether you own one property or several, keeping these twenty terms straight will make lease reviews, insurance calls, and tax conversations noticeably less stressful.
Legal and Lease Terms
Security Deposit. Money collected before move-in to cover unpaid rent or damage beyond normal wear and tear. California law caps the amount and sets a strict 21-day timeline for returning it, or the unused portion of it, after a tenant moves out.
Habitability. The legal standard that a rental unit must meet to be considered livable, including working plumbing, heat, and weatherproofing. A property that falls below this standard can expose an owner to legal and financial consequences, regardless of what the lease says.
Month-to-Month Tenancy. A rental arrangement that renews automatically each month rather than locking in for a set term. It offers flexibility for both parties but generally requires longer advance notice to end than many owners expect once a tenant has lived there for a year or more.
Fixed-Term Lease. A lease with a defined start and end date, typically twelve months. Neither party can end it early without cause, which trades some flexibility for predictability on both sides.
Notice to Quit. A formal notice given to a tenant to correct a lease violation, pay overdue rent, or move out by a specific date. The required notice period and format vary depending on the reason and your local jurisdiction, so the wording matters more than most owners assume.
Unlawful Detainer. The legal term for an eviction lawsuit. It is a court process, not something an owner can carry out alone, and skipping steps in the process, even with good intentions, can delay or derail the case entirely.
Just Cause Eviction. A requirement in many California cities, and now statewide for most tenancies over a year old, that an owner must have a legally recognized reason to end a tenancy or decline to renew a lease.
Rent Control. Local or state limits on how much and how often rent can be increased. Coverage varies significantly by city, property age, and property type, so it is worth checking your specific address rather than assuming a citywide rule applies uniformly.
Right of Entry. The legal notice period an owner or property manager must give before entering an occupied rental, except in genuine emergencies. In California, that is generally 24 hours’ written notice for non-emergency entry.
Estoppel Certificate. A signed statement from a tenant confirming the lease terms, rent amount, and deposit on file. Buyers and lenders often request one when a rental property is being sold or refinanced, since it confirms the lease matches what the owner has represented.
Money and Investment Terms
Cap Rate. Short for capitalization rate, this measures a property’s annual income relative to its value, calculated by dividing net operating income by the purchase price or current value. It is a quick way to compare potential returns across different properties.
Cash Flow. The money left over each month after collecting rent and paying every expense tied to the property, including the mortgage, taxes, insurance, and management costs. Positive cash flow means the property pays for itself and generates additional income; negative cash flow means you are covering the shortfall out of pocket.
Vacancy Rate. The percentage of time a rental sits empty between tenants, expressed either for a single property over a year or across a broader market. A lower vacancy rate generally signals strong tenant demand and effective turnover management.
Depreciation. A tax deduction that lets owners recover the cost of a rental building over a set number of years, since the IRS treats a building like a wearing asset even while it is appreciating in market value. When you sell, some of that deduction may be “recaptured” and taxed.
1031 Exchange. A transaction that lets an investor sell one property and reinvest the proceeds into another qualifying property while deferring capital gains tax, provided strict deadlines and rules are followed. We cover this one in detail in our plain-English primer on 1031 exchanges, since the mechanics deserve more than one paragraph.
Landlord Insurance. A policy written specifically for rental property, covering the structure, liability, and often lost rental income if the property becomes uninhabitable after a covered loss. It is a different product than a standard homeowners policy, and mixing the two up is one of the more expensive mistakes an owner can make, which we unpack further in our comparison of landlord insurance versus homeowners insurance.
Day-to-Day Management Terms
Tenant Screening. The process of evaluating a rental applicant through credit history, income verification, rental history, and background checks before approving a lease. Thorough screening upfront is consistently one of the strongest predictors of a smooth tenancy later.
Fair Housing. Federal and state laws that prohibit discrimination against applicants or tenants based on protected characteristics such as race, religion, familial status, disability, and several other categories. These rules apply at every stage, from advertising a vacancy through renewing or ending a lease.
Normal Wear and Tear. Gradual deterioration from ordinary use, such as light carpet wear or faded paint, which an owner cannot deduct from a security deposit. This is distinct from damage, which results from neglect or misuse and generally can be deducted.
Turnover. The process of preparing a unit for a new tenant after the previous one moves out, including cleaning, repairs, and any updates needed before the next lease begins. Faster, well-managed turnover directly reduces the vacancy rate described above.
Keep This List Close
You do not need to memorize any of this. Bookmark the page and come back when a term catches you off guard, whether that is during a lease negotiation, an insurance renewal, or a conversation about selling. For broader guidance on the topics these terms connect to, our owner resources library covers everything from maintenance planning to rent collection in more depth. And if a specific situation on your property does not fit neatly into any of these definitions, that usually means it is worth a direct conversation rather than a search engine, so feel free to reach out any time.