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Deferred Maintenance: The Hidden Liability in Every Acquisition

Deferred Maintenance: The Hidden Liability in Every Acquisition

April 25, 2026

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By Tanner Sherman, Managing Broker

Deferred maintenance is the gap between what a building needs and what the seller actually spent on it. Every property has some. The question is how much, and whether you priced it into your offer.

This is the silent killer of investor returns. The seller knows about it. The broker knows about it. The buyer who does not look closely enough is the one who eats it.

How Sellers Hide It

A seller preparing to list a property knows what to do. Touch up the curb appeal. Replace burned out exterior bulbs. Power wash the parking lot. Paint the leasing office.

None of those things address the 18 year old roofs. The HVAC compressors at the end of their lives. The boilers that have been patched four times. The mainline plumbing in a 1965 building that has never been scoped.

Cosmetic improvements are cheap. Real capital expenditures are expensive. Sellers know which one moves the asking price.

The Roof Math

A 30 unit building can have 60 to 80 thousand dollars of roof replacement coming. If the roof is 18 years old and rated for 20, the new owner is replacing it within two years.

If you did not factor that into your underwriting, that money comes out of your distributions to LPs or your operating reserves. Either way, your projected return drops.

Ask for a roof inspection. Pull permits. Look at the warranty. If the seller resists, that tells you what you need to know.

HVAC and the Unit Turn Trap

Property condition reports often list HVAC age but not condition. A 12 year old furnace can be running fine or about to fail.

On a per unit basis, replacing HVAC at turnover is one of the largest line items in a renovation budget. Two thousand to four thousand dollars per unit depending on the system. Multiply that across 30 units and you are looking at 60 to 120 thousand dollars of capex that did not appear on the offering memorandum.

Walk every mechanical room. Ask the property manager when each system was last serviced. Get a third party HVAC inspector if the scope justifies it.

The Hidden Plumbing Bill

Older buildings have mainline plumbing issues that no one talks about until a flood happens at three in the morning. Galvanized lines corroding from the inside. Cast iron stacks cracking at the joints. Polybutylene that should have been replaced 15 years ago.

A single line break can mean 20 thousand dollars in restoration, six months of insurance claim drama, and tenants moved out at your expense.

Get a sewer scope on every building over 30 years old. If the seller refuses, walk.

Underwriting the Real Number

In our acquisitions, we build a separate line item called latent capex. It is not the year one renovation budget. It is the cumulative deferred maintenance the seller did not address.

We assume 1500 to 3000 dollars per unit on top of any business plan capex, depending on age and condition. That is our cushion against the unknowns. Sometimes we use all of it. Sometimes we use half. We have never regretted budgeting for it.

The Discipline This Forces

Deferred maintenance is the easiest place to fool yourself into a higher offer. Skip the inspection, save the time, win the deal.

That is how you end up owning someone else's problem at a price that does not account for it. The discipline is to underwrite the real number and offer accordingly. Sometimes that means losing deals. Better than buying ones you should have walked from.

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