01

Multifamily investment covers everything from a duplex an owner self-manages to a two-hundred-unit garden-style complex run by a third-party management company, and the differences between the two ends of that range matter more than the shared label suggests. Unit count changes the financing available, the expense ratio, and how much of the owner's own time the property demands, which is why a five-unit building and a fifty-unit building get evaluated on almost entirely different criteria even though both fall under the same broad category.

02

Unit Count Changes the Financing Path

Properties with four units or fewer generally qualify for residential financing, while five units and up move into commercial multifamily lending, which underwrites the property's income rather than the borrower's personal income the way a residential loan does. That shift changes the down payment requirement, the interest rate structure, and how quickly a loan can close, all of which matter for an exchanger working against a 180-day deadline.

03

Where the Income Actually Comes From

Multifamily income is driven by occupancy and rent growth, both of which respond to local job growth, new supply coming online, and how a specific submarket's rent compares to what renters can actually afford there. A trailing twelve-month operating statement tells only part of the story, a rent roll showing several units well below current market rent signals near-term upside if the seller has been slow to push renewals, while a roll already at market caps that upside.

04

Expense Ratios Vary by Property Age and Size

Older buildings typically carry higher maintenance and capital expenditure needs than newer construction, and larger properties benefit from economies of scale on staffing and vendor contracts that a small building can't access. A twelve-unit building self-managed by the owner runs a very different expense ratio than the same twelve units under a third-party management contract charging a percentage of collected rent, and that difference belongs in the underwriting before an offer goes in.

05

Multifamily as 1031 Replacement Property in the Aspen Area

Multifamily inventory within Aspen and the immediate valley is limited and expensive relative to yield, largely because so much of the local housing stock is deed-restricted for local workers rather than open-market rental. An exchanger moving proceeds from an Aspen sale into multifamily often has to look toward Rifle, Glenwood Springs, or out-of-state markets with more inventory at a workable cap rate, and a fee-simple multifamily purchase in any of those markets qualifies as like-kind replacement property.

06

Underwriting Renewal Risk on a Multifamily Purchase

A twelve-month lease term means the entire rent roll turns over on its own schedule, which is different from a net lease property carrying ten years of contracted income on a single signature. That turnover cuts both ways: it lets an owner reprice units to market faster than a long-term commercial lease would allow, but it also exposes the property to a soft local rental market showing up in cash flow within a year rather than a decade. Modeling a range of renewal and vacancy scenarios, not just the current trailing occupancy, is part of underwriting any multifamily purchase honestly.