Overview of How to Go From 1 to 10 Rentals with "The Stack" Method
In this BiggerPockets Real Estate Rookie episode, Ashley Kerr and Tony J. Robinson break down the “stack method”—a step-by-step real estate strategy for turning a first property into a multi-property rental portfolio over time. The core idea is simple: start small, then gradually buy slightly larger properties (single-family home → duplex → triplex → fourplex), using cash flow, equity, and smart financing to keep scaling.
The hosts emphasize that this is not a get-rich-quick plan. Instead, it’s a practical path for new investors who want to build wealth with lower upfront capital, especially if they can house hack, use primary-residence financing, and avoid rushing into bad deals.
What Is the Stack Method?
The stack method is a scaling strategy where each new purchase is a step up in size:
- Year 1: Buy a single-family home
- Year 2: Buy a duplex
- Year 3: Buy a triplex
- Year 4: Buy a fourplex
The “stacking” comes from building progressively larger assets while keeping earlier properties as rentals. In some cases, investors may also use a 1031 exchange to trade up instead of keeping each property, but the episode mainly focuses on holding and growing a portfolio.
Why It Works
- It lowers the barrier to entry for beginners
- It builds confidence and experience gradually
- It can be financed with relatively small down payments at first
- It creates a portfolio that can generate both cash flow and equity growth
Step-by-Step Playbook
1. Start with a Single-Family Home
The first purchase should be something manageable and affordable. Ideally, this is a property you can house hack:
- Put down 3%–5% with primary-residence financing
- Live in it for the required occupancy period
- Rent out extra rooms if possible
- Save aggressively while living there
A key tip they highlight is the “rent by the room” approach, which can dramatically improve cash flow on a single-family home.
2. Move Into a Duplex
After your first year, move on to a duplex:
- You can live in one unit and rent the other
- Or buy it as a pure investment property with a larger down payment
- This is also a good time to pull a HELOC from your first home if it has equity
They stress getting the HELOC while the property is still a primary residence, because terms are usually better and access is easier.
3. Repeat with a Triplex
Next, scale into a triplex:
- Move out of the duplex and rent out all units
- Use a similar financing strategy
- Consider renting by the room or using a furnished midterm/short-term rental model to boost income
4. Expand to a Fourplex
A fourplex is often where the portfolio starts to become meaningfully powerful:
- More doors = more income
- Better ability to offset your own housing costs
- Often stronger cash flow potential than single-family homes
The hosts note that by this stage, you may have a 10-unit portfolio if you’ve stacked the properties properly.
Financing and Leverage Strategies
House Hacking
House hacking is one of the biggest advantages in this strategy because it can reduce down payments and speed up acquisition.
Benefits include:
- 3%–5% down financing on owner-occupied properties
- Lower monthly housing cost
- Better ability to save for the next purchase
HELOCs
A home equity line of credit can be a powerful bridge to your next deal:
- Usually easier and cheaper on a primary residence
- Can provide down payment or rehab funds
- Often has favorable introductory rates
- You can keep it open even after moving out
DSCR Loans
They also mention DSCR loans as a way to scale faster because they focus on the property’s income rather than your personal income.
Tradeoffs:
- Easier to qualify for more loans
- Higher closing costs
- Higher interest rates than primary-residence loans
Keep Your W-2 Job Longer
One important warning: if you’re house hacking and stacking, don’t quit your W-2 too early. Your job income helps support:
- Debt-to-income qualification
- Mortgage approvals
- HELOC approvals
Example Math: Stack Method vs. Traditional Single-Family Investing
The episode compares a traditional path to the stack strategy.
Traditional Single-Family Example
- Purchase price: $300,000
- Rent: $1,800–$2,200/month
- 20% down payment: $60,000
They note that in many markets, this route can be tight on cash flow and require a large amount of capital to scale.
Stack Method Example
Single-Family Home
- Purchase price: $300,000
- 3.5%–5% down: $10,000–$15,000
Duplex
- Purchase price: $400,000
- 3.5%–5% down: $14,000–$20,000
- 20% down: $80,000
Triplex
- Purchase price: $475,000
- 3.5%–5% down: $16,000–$23,000
- 20% down: $95,000
Fourplex
- Purchase price: $550,000
- 3.5%–5% down: $20,000–$27,000
- 20% down: $110,000
Main Takeaway from the Numbers
- Putting less money down lets you acquire properties faster
- Putting more money down lowers risk and may improve cash flow
- Your pace depends on how quickly you can save, how much you house hack, and how aggressively you optimize each property’s income
Best Markets for the Stack Method
The hosts stress that not all markets are suitable.
Ideal Market Characteristics
Look for markets with:
- Affordable home prices
- Strong price-to-rent ratios
- Good cash flow potential
- Sufficient small multifamily inventory
- Some appreciation upside, but cash flow is the priority
Markets Mentioned
They reference BiggerPockets’ summer 2026 rent-to-payment report and cite markets like:
- Indianapolis
- Cleveland
- Memphis
- Kansas City
- Birmingham
- Pittsburgh
- St. Louis
- Columbus
- Oklahoma City
- Cincinnati
- Louisville
- Detroit
- Milwaukee
These are mostly Midwest and lower-cost markets, which tend to work better for this strategy.
Key Warnings and Practical Advice
Don’t Rush the Timeline
You do not need to buy a property every year. Even if it takes 2–3 years to save for the next down payment, the strategy still works.
Don’t Force Bad Deals
The hosts strongly advise against rushing into a property just because you’re “supposed” to stack. A bad deal can derail the whole plan.
Maximize Cash Flow Where Possible
To accelerate the stack, consider:
- Renting by the room
- Furnished midterm rentals
- Short-term rentals where allowed
- Using HELOCs strategically
- Reinvesting rental income into the next down payment
Main Takeaways
- The stack method is a gradual real estate scaling strategy built around buying larger properties over time
- House hacking is one of the best ways to make it work
- HELOCs and primary-residence financing can lower your capital requirements
- The strategy works best in markets with strong rent-to-price ratios
- You don’t need to scale fast—slow, steady, and disciplined is often better
- The goal is to build a portfolio that creates cash flow, equity, and long-term financial flexibility
Bottom Line
The stack method is a realistic blueprint for rookie investors who want to grow from one rental to a portfolio of ten or more properties without needing massive upfront capital. The episode’s core message is that success comes from starting small, using leverage wisely, maximizing each property, and being patient enough to let the strategy compound over time.