I Couldn't Afford a House Alone, So I Bought One with My Best Friend

By Michael Affeldt, Realtor® | The Boen Team

Imagine this: Madison and her roommate Taylor are tired of watching their rent checks vanish into someone else's equity. One day, they start to wonder—what if we bought a house together?

It's not a move most people expect from two friends in their late twenties. Their Realtor (that's me) would naturally have a few questions:
"Are you sure?"
"What happens if one of you meets someone and moves out?"
"What if you disagree on a renovation or want to sell at different times?"

But in this scenario, six months later, Madison and Taylor are thriving. They've bought a charming Craftsman in Northeast Minneapolis, traded rent for equity, and now host legendary backyard dinner parties under twinkle lights. Their friends? Once skeptical, now curious.
"Everyone thought we were crazy," Madison says. "Now they're asking how to do it too."

While this story is fictional, it reflects a very real trend. In today's housing market, with prices and interest rates stretching budgets to the limit, more people are exploring co-buying with friends or family. And it might just be the most practical path to homeownership that not enough people are talking about.

Real People, Real Success: Co-Ownership Stories

One of my favorite co-buying success stories involves two sisters, Erin and Nicole. Both in their early 30s with good jobs but not quite enough savings to buy solo in their target neighborhood, they pooled resources to purchase a duplex in South Minneapolis.

The setup is perfect: Erin lives upstairs, Nicole downstairs. They maintain privacy while splitting the mortgage, building equity twice as fast as they could alone, and even hosting joint gatherings in their shared backyard.

"The best part," Erin told me, "is that we're not throwing money away on rent, but we didn't have to compromise on location or wait another five years to save up."

What made their arrangement work when I've seen others struggle? Three things: a detailed co-ownership agreement, regular financial check-ins, and mutual respect for boundaries. Let me walk you through how you can replicate their success.

First Things First: Legal Protection That Preserves Relationships

Before you start browsing listings with your potential co-buyer, you need to have some important conversations and make some key decisions. Think of this as the prenup of property co-ownership—a little awkward to discuss, perhaps, but absolutely essential.

Choosing the Right Ownership Structure

You'll need to decide between two main options:

Joint Tenancy with Right of Survivorship: This creates equal ownership between all parties. If one owner passes away, their ownership automatically transfers to the surviving owner(s).

I recommended this approach for the siblings I worked with last year. As they told me, "We trust each other completely, and this felt simpler."

Tenants in Common: This allows for unequal ownership splits—maybe one person contributes 60% of the down payment and the other 40%, so ownership reflects that ratio. Each person's share can be passed down to heirs according to their will.

This was the right choice for college friends Marcus and Deon, who had different financial situations but wanted to invest together. Marcus put down 65% and Deon contributed 35%, with their mortgage payments reflecting this split.

The Co-Ownership Agreement: Your Friendship Insurance Policy

I've seen firsthand how even the closest relationships can be tested when large sums of money and property decisions are involved. That's why I insist all my co-buying clients create a formal co-ownership agreement.

At minimum, your agreement should address:

Financial responsibilities:

• How much will each person contribute to the down payment?
• Will mortgage payments be split 50/50 or proportionally?
• Who pays for utilities, property taxes, insurance?
• How will you handle unexpected repairs? (Trust me, there will be unexpected repairs!)

Daily living arrangements:

• Will all owners live in the property?
• What are the guest policies?
• How will you make decisions about decorating common spaces?

Exit strategy:

• What happens if someone wants to sell their share?
• Do the remaining owners get first right of refusal?
• How will you determine the property's value at that time?
• Is there a timeline commitment? (Many of my clients agree to a minimum 3-5 year ownership period)

A client once told me, "Writing our co-ownership agreement forced us to have conversations we might have avoided. It was actually a great test of whether we could own property together."

Beyond the Mortgage: Financial Planning for Co-Owners

Getting Approved Together

When you apply for a mortgage with co-buyers, lenders will evaluate everyone's financial situation. This means:

• All buyers' credit scores will be considered (with many lenders focusing primarily on the lowest score)
• Everyone's debt-to-income ratio matters
• Each person's income contributes to your buying power

I recently worked with three teachers who combined their incomes to qualify for a beautiful home none could have afforded individually. However, one had some credit card debt that slightly lowered their approval amount. They decided together that paying off that debt before house hunting was in everyone's best interest.

Pro tip from my lending partners: If possible, have the conversation about credit scores and debt before getting too far into the process. Financial transparency is essential among co-buyers.

Creating a Shared Financial System

The mortgage payment is just the beginning. You'll also share:

• Homeowners insurance
• Property taxes
• Utility bills
• Maintenance costs
• Potential renovation expenses

Most successful co-owners I've worked with set up a dedicated joint account for house expenses. Each person contributes monthly, creating a cushion for both regular bills and unexpected costs.

Madison and Taylor, the friends I mentioned earlier, use a shared spreadsheet to track all house-related expenses and have a quarterly "house meeting" to review finances and discuss any upcoming needs or projects.

The Human Element: Can You Really Live (and Decide) Together?

Here's something I tell all potential co-buyers: this arrangement is as much about compatibility as it is about finances.

Ask yourselves these questions honestly:

• Do we have similar standards for cleanliness and home maintenance?
• How do we typically resolve conflicts?
• Do we communicate openly about money and problems?
• Do our long-term plans align reasonably well?

One of my clients described their successful co-ownership as "like a marriage, but with separate bedrooms and without the romance." There's truth to that—you're creating a partnership that requires compromise, communication, and commitment.

When It Works Beautifully

When co-ownership works well, the benefits extend beyond financial:

• You can enter the housing market years earlier than you might have alone
• You build wealth through equity instead of paying rent
• You share the burdens of homeownership (both financial and maintenance)
• You often strengthen important relationships through the shared experience

As Nicole from our duplex-owning sister duo told me: "Buying with my sister meant I could live in a neighborhood I love years before I could have afforded it alone. Plus, having built-in help when the water heater broke at midnight? Priceless."

Navigating Change Together

Life rarely stays static, and this is where many co-ownership arrangements face their biggest tests. During your ownership, someone might:

• Get married or enter a serious relationship
• Receive a job offer in another city
• Experience financial changes (positive or negative)
• Simply decide they're ready for a change

Your co-ownership agreement should address these possibilities, but flexibility and compassion matter too. I've helped clients navigate all these transitions, from buying out a co-owner's share to selling the property and dividing the proceeds.

Is Co-Buying Right for You?

Co-buying works best when you:

• Trust your potential co-owner(s) deeply
• Have compatible financial habits and similar credit profiles
• Can communicate openly about money and household decisions
• Share roughly similar timelines for homeownership
• Are willing to formalize arrangements to protect everyone involved

If that sounds like you, co-buying could be your path to homeownership in a challenging market.

Ready to Explore Co-Ownership?

As someone who's helped dozens of friends, siblings, and even cousins navigate the co-buying process in the Twin Cities, I've seen firsthand how this approach can transform "someday" homeownership dreams into present-day reality.

Whether you're considering purchasing with a sibling, friend, or partner, I'd love to help you explore this option—from finding the right property type for co-ownership to connecting you with legal resources for creating solid co-ownership agreements.

Let's talk about making homeownership possible, together.

Michael Affeldt
Realtor® | The Boen Team
 (952) 857-9691
 Michael@MichaelAffeldt.com
 MichaelAffeldt.com
 Specializing in Buying | Selling | Homes for Heroes

Disclaimer: This content is for informational purposes only and does not constitute legal, financial, or real estate advice. Always consult with a licensed professional for advice specific to your situation.