How to Underwrite a Non-Performing Note — From Someone Who’s Actually Done It

How to Underwrite a Non-Performing Note — From Someone Who’s Actually Done It

When you buy a non-performing note, you’re basically stepping into someone else’s mess — and trying to make money doing it. That “someone else” might be a lender tired of chasing payments, a hedge fund holding hundreds of bad loans, or even a private investor ready to cash out.

For anyone new to this: a non-performing note (NPN) means the borrower has stopped paying, usually for 90 days or more. You’re not buying the property yet — you’re buying the paper. The promise to pay. And with that comes risk, reward, and a whole lot of homework.

Now, I recently went through a deal just like this. I can’t share numbers or specific details because of confidentiality, but let’s just say it involved multiple properties, a defaulted borrower, and two sides — one trying to sell, one trying to buy — both cautious but curious. What I learned (and re-learned) in that process is exactly what I’m sharing here.

1. Start With the Story Behind the Note

Every note has a backstory. Before you crunch any numbers, you need to know:

• Who was the original borrower?

• When did they stop paying and why?

• Has the lender already started foreclosure?

• Is the property occupied or vacant?

• Are tenants still paying rent?

Think of yourself like a detective. You’re not just analyzing a loan — you’re reading a mystery. Sometimes you find a borrower who hit a rough patch but wants to work things out. Other times, you find a disaster that’s been dragging through court for years.

In my recent experience, one of the first things the potential buyer asked was: “What’s the original rate? What’s the default rate? How are you calculating the total debt?”

Those are the right questions — because if you don’t know how the lender got to their payoff number, you can’t value the deal correctly.

2. Get Every Document You Can — and Then Some

If there’s one thing I’ve learned in 20 years of doing deals, it’s that paperwork makes or breaks note transactions.

Here’s what a solid due diligence (DD) package should include before you even think of making an offer:

1. Promissory Note – The actual IOU signed by the borrower.

2. Mortgage or Deed of Trust – The security instrument that ties the loan to the property.

3. Allonges and Assignments – Proof the note was properly transferred from one party to another.

4. Payment History – Even if it’s ugly, you need to see it.

5. Default Notices and Legal Filings – What’s already been filed in court?

6. Title Reports – Who really owns what?

7. Property Condition Reports – Pictures, inspections, or even drive-by photos.

8. Rent Roll and Occupancy Data – If tenants are in place, how’s the cash flow?

Without these, underwriting becomes guesswork. And in real estate, guessing is expensive.

In my case, I saw both sides hesitate: the seller didn’t want to share everything before seeing a letter of intent, and the buyer didn’t want to sign anything before seeing the files. Classic standoff. That’s where a broker like me comes in — bridging that gap so everyone can move forward safely.

3. Verify the Legal Standing of the Note

Just because someone says they “own the note” doesn’t mean they actually do — or that they can enforce it.

A few things to check:

• Is the note endorsed correctly from one lender to the next?

• Were any assignments recorded with the county?

• Is there an active foreclosure case, and if so, who’s the plaintiff?

• Has the borrower filed for bankruptcy at any point?

One missing signature or unrecorded assignment can delay a foreclosure for months or even years. That’s why experienced investors always hire a title company or attorney familiar with note chain validation.

In one of my early deals, we found the note had been sold three times — but one assignment in the middle was never recorded. That tiny missing link nearly blew up the whole closing. Lesson learned: verify the paper trail before you verify the profit.

4. Understand the Collateral

The note might be bad — but the collateral (the property) is where your opportunity lies.

Here’s what you need to ask:

• What’s the as-is value of the property?

• How much are repairs or renovations going to cost?

• What’s the after-repair value (ARV)?

• Is it in a rentable or resale-friendly area?

• What’s the current occupancy and rent situation?

If the borrower stopped paying, that doesn’t automatically mean the property is worthless. Sometimes the real estate is solid, just mismanaged. That’s where you can step in — either to rehab, rent, or resell.

In my recent deal, some of the properties still had paying tenants even though the note was in default. That’s not always common, but it changes the math entirely. Instead of dead debt, you’ve got a distressed income stream.

5. Model Multiple Exit Scenarios

When underwriting a non-performing note, you don’t value it based on what’s owed — you value it based on what you can actually recover.

Here are the most common exit options:

• Reinstatement / Loan Modification: Borrower starts paying again.

• Deed in Lieu: Borrower gives you the property back voluntarily.

• Foreclosure: You take legal title through court.

• Note Resale: You resell the paper to another investor before foreclosure.

For each exit, model out:

• Expected timeline

• Legal and carrying costs

• Realistic resale or rental value

• Recovery percentage

A quick example: if the unpaid balance is $200,000, but you think you can foreclose, rehab, and resell for $160,000 net, you don’t pay $200K for that note. You might pay $100K–$120K depending on your risk tolerance and timeline.

In my case, we were somewhere in that middle ground — both sides trying to justify what made sense. That’s what makes note deals interesting: you’re not just buying paper, you’re buying potential.

6. Always Account for Advances and Accruals

This one separates the pros from the rookies.

Lenders often advance money to cover:

• Property taxes

• Insurance

• HOA fees

• Legal costs

These are recoverable advances, meaning they add to the total debt owed. But here’s the catch — not every advance is recoverable in every state, and some accrue interest while others don’t.

When a buyer asked me for a breakdown of advances, I understood why: it changes the payoff math. If $10K in legal fees or tax advances aren’t accounted for properly, it can throw off your valuation.

So before you make an offer, confirm exactly how the total indebtedness was calculated — principal, interest, default rate, fees, and advances. Transparency here prevents re-trades later.

7. Protect Yourself with the Right Agreements

Even if you’re just reviewing data, have the right legal framework in place.

• NDA (Non-Disclosure Agreement): Always use one when reviewing proprietary loan data.

• LOI (Letter of Intent): Use it once your underwriting is done and you’re ready to commit.

• PSA (Purchase and Sale Agreement): Final contract once the deal is accepted.

Remember, an NDA shows good faith — an LOI shows intent — and a PSA seals the deal. Don’t mix them up.

In my recent situation, the buyer agreed to sign NDAs but not an LOI until all documents were reviewed. That’s a fair stance, and it’s normal in this space. The key is keeping communication open so no one feels pressured.

8. Be Realistic About Timelines and Legal Costs

Non-performing notes are not fast money. The timeline depends on where the borrower is in the legal process.

• Pre-foreclosure: You might still negotiate a workout.

• Mid-foreclosure: Could take 6–18 months depending on the state.

• Post-judgment: You’re almost at the finish line — just need the sale and deed.

In Florida, for example, judicial foreclosures can take a year or more if contested. And that’s before you start rehab or resale.

You also need to budget for:

• Attorney fees

• Servicing costs

• Insurance

• Property maintenance (especially if vacant)

In my experience, the biggest surprise for new note buyers isn’t the purchase price — it’s the holding cost during the legal process. That’s where deals can sink or shine.

9. Partner with People Who Know the Process

This isn’t a beginner’s playground. You want to have:

• A note-savvy attorney who understands foreclosure law.

• A licensed servicer who can manage borrower communication legally.

• A title company that knows assignments and lien checks.

• A reliable broker or partner who can source and vet deals.

In my own case, working with a team that understood both sides of the transaction kept the deal alive. The buyer didn’t walk, the seller stayed engaged, and everyone stayed professional. That’s rare in this niche — but that’s how good deals survive.

10. Always Know Your “Why”

Buying a non-performing note isn’t for everyone. Some investors love it because they enjoy turning chaos into opportunity. Others prefer the simplicity of a flip or a rental.

Before you dive in, ask yourself:

• Am I trying to get the property or just the paper?

• Do I have the time, capital, and patience to wait out legal timelines?

• Do I have access to professionals who can help me manage it?

In my experience, the investors who succeed with non-performing notes aren’t the ones chasing a quick profit — they’re the ones who can see value where others see headaches.

Final Thoughts

Underwriting a non-performing note is equal parts math, law, and psychology. You’re analyzing numbers, reading human behavior, and forecasting timelines — all at once.

The truth is, most of the profit in note investing is made before you buy — when you do your due diligence right. The better you understand the story, the cleaner your documents, and the more realistic your assumptions, the smoother your path to profit.

I’ve been through enough of these to say this with confidence: it’s not about finding perfect notes; it’s about understanding imperfect ones.

If you’re thinking of exploring this strategy, start by studying smaller deals, surround yourself with people who’ve done it, and never rush the paperwork.

Keep it consistent, stay patient, stay true — if I did it, so can you. This is Jorge Vazquez, CEO of Graystone Investment Group and Coach at Property Profit Academy. Thanks for tuning in — until the next article, take care and keep building!

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