COS Study Guide 2026
Everything you need to pass the COS exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
COS exam key facts
📋 COS Exam Format at a Glance
📚 COS Topics to Study (27)
✍️ Sample COS Questions & Answers
1. Under the Violence Against Women Act (VAWA), a property manager must provide domestic violence victims with what document at lease signing and recertification?
HUD form HUD-5380 (Notice of Occupancy Rights under VAWA) must be provided to all applicants and residents at key occupancy stages.
2. What is a needs assessment in COS Property Valuation & Appraisal practice?
A needs assessment identifies gaps between current performance and desired outcomes to justify improvements.
3. How does professional liability insurance protect COS practitioners?
This insurance covers financial consequences of claims alleging negligence or mistakes in professional services.
4. What is the purpose of a Housing Assistance Payments (HAP) contract?
A HAP contract defines the terms and conditions under which HUD provides rental subsidy payments to property owners on behalf of eligible tenants.
5. Under HUD's physical standards, a property with a REAC score below what threshold is considered 'troubled' and may face increased oversight?
A REAC physical inspection score below 60 generally designates a property as 'troubled,' triggering enhanced HUD oversight and a required corrective action plan.
6. Under HUD rules, the dependent deduction per dependent is:
HUD allows a $480 deduction per dependent from annual income when calculating adjusted income.
🎯 Free COS Practice Tests
📖 COS Guides & Articles
What Practice Test Geeks adds beyond an AI chat for COS
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length COS mock exam — 100 questions in 120 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed COS question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable COS cheat sheet you can print or save as a PDF.
- COS flashcards built from the same question bank.
- Free COS practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- nchm.org — Test delivery, eligibility, score release, test dates, renewal, score validity, late registration, registration deadline, fees · verified Oct 2026