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Mortgage Note Investing Knowledge Base
380 terms, 30 lessons, 170 articles — all free
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6 courses · 30 lessons · 4 hrs 31 min
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Welcome to FIXnotes
I built this library to give note investors — new and experienced — a single place to learn the business inside and out.
- 380+ encyclopedia terms covering every concept in note investing
- Free video courses from first principles to scaling a portfolio
- A community of 2,104+ investors learning and sharing deals together
Mastermind Accelerator
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Whether you want to build your own note portfolio or become a mortgage note matchmaker earning transaction fees, the Accelerator fast-tracks you with structured modules, knowledge checks, and a real-world capstone simulation.
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Foreclosure law, lender distress, vendors, and live deal flow — by state. Tap a state for its market hub.
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Popular Terms
Due DiligenceForeclosureLoan ModificationNon-Performing LoanUnpaid Principal BalanceLien PositionDeed in LieuPerforming LoanLoan-to-ValuePromissory Note
Browse all 380 terms →Latest Content
67 Videos · 46 Articles · 44 Podcasts · 13 Case Studies
June 24, 2026
VideoHow to Research and Analyze Mortgage Notes: The Complete Due Diligence Waterfall
The non-performing note due diligence waterfall — from secured status to equity coverage — is a step-by-step system for analyzing mortgage notes.
June 23, 2026
VideoWhat Happens If the Promissory Note Is Missing?
A missing promissory note does not kill a deal, but it creates serious legal risks. Learn how to verify collateral and use lost note affidavits.
June 22, 2026
VideoWhat GSE Privatization Means for Note Investors
GSE privatization could flood the secondary market with NPL deal flow. What Fannie and Freddie changes mean for private note investors.
Learn About
Bankruptcy & Default
30 resources
22 terms · 6 articles · 2 lessons
Deal Sourcing
60 resources
31 terms · 18 articles · 11 lessons
Due Diligence
53 resources
24 terms · 21 articles · 8 lessons
Entrepreneurship
10 resources
3 terms · 3 articles · 4 lessons
Finance & Capital
68 resources
57 terms · 8 articles · 3 lessons
Investor Strategy
62 resources
19 terms · 31 articles · 12 lessons
Legal & Compliance
77 resources
62 terms · 13 articles · 2 lessons
Loan Status
13 resources
4 terms · 8 articles · 1 lesson
Loan Structure
83 resources
65 terms · 14 articles · 4 lessons
Property & Valuation
49 resources
34 terms · 14 articles · 1 lesson
Resolution Strategy
54 resources
19 terms · 26 articles · 9 lessons
Servicing & Administration
54 resources
40 terms · 8 articles · 6 lessons
Deep Dive Guides
Go deeper on the topics that matter most to mortgage note investors.
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