Michigan passed legislation in 2024 that restricts large institutional investors from purchasing single-family homes in the state. It’s a direct shot at the hedge funds, private equity giants, and real estate investment trusts that spent the better part of a decade hoovering up starter homes in competitive markets. The law caps the number of single-family properties a corporate entity can own within certain jurisdictions and requires additional disclosures when institutional buyers make offers.
Michigan isn’t alone in thinking this way. Several states have introduced similar bills, and the conversation in Washington has gotten louder too. But Michigan’s law is one of the more concrete examples of a state actually crossing the finish line.
So what does any of this mean if you’re buying or investing in Phoenix, Scottsdale, or Gilbert? More than you might think.
Why These Laws Are Gaining Traction Nationally
The frustration driving these bills is real. Between 2012 and 2023, institutional investors — broadly defined as entities owning more than 10 or more single-family homes — bought heavily in Sun Belt metros and Midwest cities where prices were still affordable. In some ZIP codes around Atlanta, Charlotte, and Indianapolis, corporate buyers accounted for 20% to 30% of all home purchases during peak years, according to various academic and government studies.
The result: first-time buyers competed against buyers who never needed a mortgage, never had appraisal contingencies, and could close in days. Inventory tightened. Prices climbed. Rental supply grew, but homeownership rates didn’t.
The political backlash was inevitable.
Several proposals have circulated at the federal level — including bipartisan legislation that would impose escalating tax penalties on large corporate holders of single-family homes — but no federal law has passed as of recent market data. Congress has been exploring various housing cost reduction measures, but state-level action, like Michigan’s, is moving faster.
How Arizona Fits Into This Picture
Here’s the honest answer: Arizona was hit hard by institutional buying, especially in the Phoenix metro.
During the 2020–2022 frenzy, corporate investors — including major players operating build-to-rent communities and individual SFR (single-family rental) aggregators — were active buyers in markets like Mesa, Chandler, Peoria, and Surprise. Some of those purchases were single homes competing directly against owner-occupants. Others were bulk deals on new-build subdivisions before they even hit the MLS.
The build-to-rent wave has continued in the Valley even as the acquisition frenzy cooled. Communities like Avilla Foothills in Surprise represent a different model — purpose-built rentals, not converted owner-occupied stock — but they’re still pulling land, labor, and permitting capacity away from for-sale inventory.
Arizona has not passed a law like Michigan’s. The state legislature has generally been resistant to restrictions on property rights and investment activity. That’s unlikely to change soon, given the political composition of the Capitol.
That said, the investor footprint in Phoenix has shrunk organically over the past two years. Higher mortgage rates hurt leveraged buyers. Cap rates compressed. Many of the smaller operators who bought aggressively in 2021 have been quietly selling, which is part of why inventory has improved in neighborhoods like Laveen and Queen Creek.
What Michigan’s Law Actually Does (and Doesn’t Do)
Let’s be specific, because a lot of the coverage around these bills overstates their impact.
Michigan’s law, as structured, targets investors who own more than 100 single-family homes within the state and imposes restrictions on purchases within certain defined geographic areas. Key elements include:
- Disclosure requirements when institutional buyers submit offers, so sellers know they’re dealing with a corporate entity
- Local government opt-in provisions that allow municipalities to set lower thresholds
- Exemptions for certain landlords, community land trusts, and nonprofit housing organizations
- A right of first refusal mechanism in some scenarios that gives owner-occupant buyers a window to match corporate offers
What it doesn’t do: ban corporate ownership outright. A company owning 50 homes in Detroit has no restriction under the current threshold. And enforcement is still an open question — regulators will need resources and willingness to monitor compliance.
Critics of the law argue it targets a symptom rather than a cause. The real driver of unaffordability is a structural shortage of starter homes — not institutional buyers alone. When you don’t build enough housing for a decade, every buyer type becomes a competitor for scarce supply.
That’s a fair critique. But the counter-argument is that while you work on the supply side, you don’t have to stand by while well-capitalized institutional players outbid families on the same limited inventory.
Both things can be true.
What This Means for Buyers and Investors Right Now
If you’re a buyer in the Phoenix metro, no Michigan-style law is protecting you here. You’re still competing in a market where cash buyers, iBuyers (in diminished form), and institutional SFR operators remain active participants.
What has changed is the competitive environment. As of recent market data, institutional buying activity in the Phoenix metro has dropped significantly from its 2021 peak. Days on market have stretched. Multiple-offer situations are far less common outside of hot pockets like parts of Scottsdale or central Tempe.
Affordability in Phoenix has been improving as wage growth catches up and some of that investor-driven price pressure has eased. It’s not an easy market, but it’s a different market than 2022.
For investors watching these legislative trends: the direction of travel is clear. More states are going to look at Michigan’s law and consider similar versions. If your strategy depends on scaling a large portfolio of single-family homes, expect more regulatory friction ahead — not less. Diversifying into multifamily, build-to-rent, or commercial assets may offer a smoother runway.
The Bottom Line
Michigan’s law matters not because it will fix the housing market by itself, but because it signals a shift in what voters and legislators are willing to tolerate from institutional real estate investors. The era of “buy everything with no questions asked” has a shorter shelf life than it did five years ago.
If you’re a first-time buyer in the Phoenix area, this is useful context — but don’t wait for a legislative rescue. The work of finding the right home at the right price still comes down to strategy, preparation, and timing in your specific market.
If you’re an investor, pay attention to how these laws are drafted and where they’re spreading. What starts in Michigan rarely stays in Michigan.
Want to talk through how the current Phoenix market affects your specific buy or sell situation? Reach out directly — that’s what I’m here for.