Multifamily · Rent and expense analysis

The rent roll doesn't tell you what a buyer will pay.

A rent and expense analysis starts with the real twelve months, not the pro forma, and the gap between current and market rent. These are the lines a buyer checks first.

Reviewed August 26, 2026Editorial guidance · Not legal, tax, or engineering advice
01

Current rent isn't market rent. The gap at turnover, loss-to-lease, is where the upside lives.

02

Underwrite off a trailing twelve months, not one representative month.

03

Achievable rent growth depends on which regime covers a given unit: City RSO, County RSTPO, statewide Tenant Protection Act, or none.

Owner checklist

Expense lines a buyer checks first.

Each of these gets challenged before a number gets trusted.

  1. 01Property taxes — reassessed on sale in California. The seller's trailing bill isn't what the buyer will pay.
  2. 02Insurance — priced off a current quote. Costs have moved meaningfully on older and wildfire-exposed buildings.
  3. 03Repairs vs. capital expenditures — correctly separated, not blended to flatter NOI.
  4. 04Utility reimbursement — reported at actual amounts, not netted against the expense.
  5. 05Management fee — imputed at market rate, even when an owner self-manages for free.

Primary sources

Continue at the original source.

These are pointers, not restatements. Open the source for the complete current requirements.

California State Board of Equalization

Supplemental assessment and change-in-ownership reassessment

Open official source
This site's housing rules library

Rent stabilization rules by city

Open

Property-specific decision

See how this applies to your property.

Start with the address and the real numbers. We can walk through what the analysis actually shows.

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