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Mortgage Note Investing Knowledge Base
380 terms, 30 lessons, 197 articles — all free
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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
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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
78 Videos · 52 Articles · 50 Podcasts · 17 Case Studies
July 31, 2026
Case StudyCase Study: 142% IRR on an NPL Junior Lien Modification-to-Payoff
NPL case study: a $19,900 junior lien on a $433K property was modified at $362/month, then paid off in full within 8 months — generating a 142% IRR.
July 30, 2026
PodcastLoan Servicing
Most note investors think servicing is just someone collecting payments — but choosing the wrong plan or the wrong servicer can cost you money, slow your.
July 29, 2026
Case StudyCase Study: 50.5% IRR on a Vacant Land Loan Modification
NPL case study: a $1,849 senior lien on vacant land resolved through a loan modification paid to maturity in 23 months — producing a 50.5% IRR.
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Bankruptcy & Default
32 resources
22 terms · 8 articles · 2 lessons
Deal Sourcing
62 resources
31 terms · 20 articles · 11 lessons
Due Diligence
54 resources
24 terms · 22 articles · 8 lessons
Entrepreneurship
12 resources
3 terms · 5 articles · 4 lessons
Finance & Capital
72 resources
57 terms · 12 articles · 3 lessons
Investor Strategy
64 resources
19 terms · 33 articles · 12 lessons
Legal & Compliance
80 resources
62 terms · 16 articles · 2 lessons
Loan Status
15 resources
4 terms · 10 articles · 1 lesson
Loan Structure
83 resources
65 terms · 14 articles · 4 lessons
Property & Valuation
50 resources
34 terms · 15 articles · 1 lesson
Resolution Strategy
59 resources
19 terms · 31 articles · 9 lessons
Servicing & Administration
57 resources
40 terms · 11 articles · 6 lessons
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