Chicago homeowners who locked in a 2% or 3% mortgage during the COVID refinance window are not trapped. The rent-and-move-up strategy works more often than people expect. The problem is that most people do the math wrong, and most lenders have only half the conversation.
Chicago homeowners with sub-4% mortgages can rent their current property and purchase a new one without giving up that rate. The decision requires honest math, vacancy buffers, HOA risk, and full carrying costs. When the numbers are modeled correctly, keeping a low-rate asset while buying up is often one of the stronger financial moves available in today's market.
There is a conversation happening across Chicago that most lenders are not having.
Homeowners who refinanced during the pandemic locked in 2%, 2.5%, maybe 3% on a 15-year fixed. Their families have grown, and their needs have shifted. They look at today's rates, feel stuck, and assume selling is the only path.
Keeping the low-rate property feels complicated, so they wait and assume the math does not work. In many cases, it does when it is run correctly.
The honest conversation starts with the full picture, not just the rental income line.
That means modeling rent potential alongside taxes, insurance, rising HOA dues, building reserves, and vacancy risk. That last piece is where most informal calculations fall apart. Penciling in 12 months of rental income is easy, but modeling for seven or eight months is realistic.
Vacancies and maintenance issues are part of the real picture. A one-time special assessment can appear in an older Chicago building without warning. None of that makes the rent-and-move-up decision wrong. It means the decision should be made with real numbers, not optimistic ones.
A lender who understands Chicago's condo market can surface the right questions before they become surprises. The pre-underwriting process matters here too: catching carrying-cost issues early prevents late-stage disruptions on the new purchase.
Consider a small one-bedroom in an older building in Old Town or Lincoln Park with a good location. A unit that rented for $1,400 a decade ago may now generate around $2,400 per month. That is more than $1,000 per month in additional income.
Lincoln Park, Lake View, Wicker Park, and Bucktown: these are markets where demand from younger renters remains strong. The median age of a first-time homebuyer in the Chicago metro has risen. That is expanding the qualified renter pool in precisely the neighborhoods where low-rate mortgage holders are most likely to own.
Combine that with a 3% mortgage already being paid down, appreciating equity, and a down payment that does not require selling the first property. The person holding that low-rate asset is not trapped. In many cases, they are holding one of the better long-term financial positions available right now.
The question is not just whether you can qualify to carry both properties. It is whether keeping the first property makes sense for your long-term financial goals. Those are two different conversations, and most lenders only have one of them.
Dean Vlamis has spent more than two decades in Chicago
lending and understands how these deals actually perform. He has structured
enough of them to identify real risk points and prepare clients before they
turn into costly surprises.
"I worked with a couple who assumed selling was their only realistic option. When we reviewed what the current property could rent for and the full cost of keeping it, they realized there was another path. The conversation was not just about qualifying; it was about whether keeping that property made sense for their long-term financial goals."
— Dean Vlamis, Mortgage Professional and CFO, A and N Mortgage
The rent-and-move-up strategy is not a compromise. For the right property and the right borrower, it is a deliberate financial decision with a clear upside.
One strategy that comes up consistently in these conversations is holding the low-rate property when the math supports it. In those cases, it may also make sense to put less down on the new purchase rather than draining savings.
Keeping the first property means you are not extracting that equity. You are letting it work, with rental income offsetting the new mortgage payment. The low-rate loan continues paying down while appreciation builds on both properties, creating real, compounding value over time.
"Even if there is vacancy, you have to take appreciation into account. If you're at a 2% rate, that's free money. Take the spread. Potentially put less down on the purchase so you keep that money working long term."
— Dean Vlamis, Mortgage Professional and CFO, A and N Mortgage
That is not a directive to overextend. It is a framework for evaluating the full opportunity, which is exactly what a serious lending conversation should do. Read my post about how move-up buyers can compete without having to sell first. The post touches on many of these issues.
In many cases, yes. Lenders review your full debt picture and weigh it against documented or expected rental income from the property you plan to keep. How that rental income gets counted varies depending on whether you have a signed lease in place and the loan program you are using. A lender who takes time to review your complete financial picture can often find a qualifying path that a quick online application would miss.
Guidelines vary by loan program, but lenders typically allow a portion of projected rental income to offset the existing mortgage payment. Some programs require a signed lease and proof of deposit. Others use market rent estimates from an appraiser. Working with a lender who knows how to document and present that income correctly gives you the strongest possible qualifying picture.
Running the numbers at full 12-month occupancy gives you a best-case picture, but not the most accurate one. Modeling at seven or eight months of rental income per year builds in a realistic buffer for vacancies, turnover, and gaps between tenants. If the deal still works at that conservative number, you are on solid ground. If it only pencils out at 100% occupancy, that risk deserves careful consideration before committing.
This is one of the real risk points that informal math often skips. HOA dues can increase, and older Chicago buildings are increasingly facing deferred maintenance, leading to special assessments. Before committing to a rent-and-move-up strategy, review the building's reserve fund status, recent meeting minutes, and any pending or anticipated work. The Illinois Condominium Property Act requires associations to disclose certain financial information, and reading those disclosures carefully is worth the time.
Yes, and the impact depends on the timing of documentation. A signed lease before closing on the new purchase typically strengthens your qualifying position. The rental income can be used to offset the existing mortgage in your debt-to-income ratio (DTI) calculation. The sequencing of when you sign a lease, when you apply, and when the new loan closes matters more than most borrowers realize.
There is no universal answer, but the trade-off is worth modeling carefully. A larger down payment on the new home reduces your monthly payment and strengthens your loan-to-value ratio (LTV). Keeping more cash in reserve protects you against unexpected costs on the rental property, repairs, vacancy periods, or assessments. In some cases, putting less down on the new purchase and keeping that liquidity working elsewhere makes better financial sense. That is particularly true when the rental property carries a low-rate mortgage already building equity on its own.
Yes. If the rental income does not meaningfully offset your carrying costs, selling may be the cleaner path. You should also consider whether the building has significant deferred maintenance or whether managing a rental property is something you want to take on. The goal is to understand what both options actually cost and return so you can make a clear-eyed decision.
Neighborhoods with consistent demand from young professionals tend to produce the most reliable rental income. Lincoln Park, Lake View, Wicker Park, Bucktown, and Logan Square have shown sustained demand. Properties in walkable, transit-accessible corridors within those neighborhoods typically carry the lowest vacancy risk and the strongest pricing power over time.
The decision to keep or sell a property should reflect the full financial picture. Rental income, debt structure, and appreciation all contribute to long-term outcomes. When those factors align, holding the property often makes better financial sense.
My team works with clients to evaluate these decisions while accounting for their real numbers and goals. We model real scenarios, account for risk, and structure financing to support the strategy. Reach out now to take an honest look at whether you should hold or sell.
Dean Vlamis is the mortgage professional and company leader of A and N Mortgage. He leads a 100% women-owned Chicago mortgage platform built on operational clarity, direct leadership access, and a collaboration-first approach to structuring complex transactions.
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