A rent bump on a 12-unit closed a 94k valuation gap without a single capital dollar spent.

The market rent assumption risk you named at the end is the one that actually killed a wholesale deal I had in Memphis last year, not the rents being wrong, but one tenant who knew exactly what market was and negotiated hard on renewal, then another who left and the unit sat 47 days because the turn took longer than budgeted. Those two things together pushed the timeline from eight months to fourteen and the carry math stopped working for the buyer I had lined up.

On my Columbus fourplex I am sitting probably 80 to 100 dollars under market per unit on two of the four, and I have been slow-walking the renewal conversation because the tenants are low-drama and I do not want to absorb a turn. That is exactly the trap your post describes and reading the actual numbers laid out like this makes me less comfortable with how I have been thinking about it. The 94k is a clean example because the cap rate stayed constant in your illustration, but I am curious what the actual spread was between what you underwrote as achievable market rent and what the appraisal eventually used, because appraisers on a refi do not always accept your pro forma comp set and sometimes they anchor closer to in-place than you expect.

The assumption doing the most work here is that your in-place tenants actually accepted the renewal at market. That is the step that looks obvious in a pro forma and is not obvious at all when a tenant has been there three years, knows what they were paying, and has options.

The risk you did name, market rent not holding through the renewal cycle, is real. The one you did not name is renewal sequencing. Renewing five of twelve units over ten months keeps occupancy intact, which protects your carry. But the appraisal at 1.17 million is only as durable as the rent roll that produced it. If two of those five renewals are on 12-month terms that come due before or shortly after the refinance closes, the lender's underwriter or a buyer in a future sale is going to haircut the stabilized income back toward what they can actually verify as sustainable. The equity you printed is real, but it has a lease-expiration schedule underneath it that either confirms or erodes the number over the next 24 months.

The other mechanical point: you got a 1.17 million appraisal against a 1.19 million pro forma valuation at the same cap rate. That 20k shortfall is the appraiser's read on where the market cap rate actually sits, which may differ from what you and the seller each assumed. That spread matters if you are trying to replicate this on the next acquisition, because the cap rate you underwrite on achievable rents needs to reflect where appraisers and lenders are landing, not where a motivated seller underwrote their current rents.

What cap rate did the refinance appraisal apply, and did it match the 6.8 you used in the original acquisition analysis?

This is a clean walkthrough of what the strategy guides call value-add through rent normalization, so it is worth unpacking the terms for anyone reading who is new to this tier.

NOI means net operating income: the rent the building collects after operating expenses, before debt payments. Cap rate (capitalization rate) is how buyers and sellers price income-producing properties. The formula is simple: NOI divided by cap rate equals value. So if a building produces $72,000 a year in NOI and the market cap rate is 6.8%, the value is roughly $1.06 million. Raise the NOI by collecting higher rents and the same math produces a higher value, with no construction required.

That is exactly what happened here. The rents were stale. The building was worth more than the seller's own asking price the moment you underwrote it at market rents, and time plus lease renewals closed that gap.

The risk you named at the end is the one beginners tend to miss. The spread between in-place and market rents looks like free money on a spreadsheet, but it only converts to value if tenants actually renew at the higher number, or vacate quickly enough that turnover costs do not eat the gain. Carry cost refers to the monthly expenses, your mortgage, insurance, taxes, that keep running while you wait for the income to catch up. If the timeline slips, the math still works, it just works more slowly.

One thing worth flagging for anyone reading: the Rena 2027 outlook for medium multifamily is listed as Up, specifically because the supply wave that compressed rents in many markets is thinning. That is a reasonable tailwind for exactly this kind of play, though local market conditions vary and nothing about rent growth is guaranteed.

Where are your in-place rents sitting relative to what a new lease would fetch today?

The carry cost point is the one I'd press on most, because eight months of debt service at whatever the acquisition financing looked like is a fixed drag whether three leases renew or five do, and the timeline slipping from eight months to fourteen changes the math on realized equity more than the rent gap itself does. If the acquisition loan was at a rate that kept the DSCR tight on current rents, any vacancy during turns could have forced a capital call the original spread did not account for. What was the debt structure at acquisition, and did the in-place rents cover the note on their own?