---
title: "Commercial Due Diligence Guides | Calibre Commercial Inspections"
description: "In-depth guides to commercial real estate due diligence: which report you need, lender requirements, Phase I ESAs, HUD capital needs assessments and reading a..."
url: https://calibre.multisites.ai/guides
publisher: Calibre Commercial Inspections
phone: "+1-208-305-6245"
email: Schedule@CalibreCBI.com
---

# Due diligence guides

Reference guides for buyers, lenders, brokers and owners. Each one answers a question directly, then shows the rules behind the answer with links to the primary sources.

[Start hereWhich commercial report do you need?A property condition assessment (ASTM E2018) forecasts what a building will cost to own. A commercial building inspection (CCPIA) describes what is wrong now. A Phase I ESA (ASTM E1527-21) checks environmental risk, not the building. They answer different questions, and many commercial deals need more than one.Read the guide](https://calibre.multisites.ai/guides/pca-vs-phase-1-esa-vs-commercial-building-inspection)

[Commercial real estate due diligence checklist: what to check and whenA working commercial real estate due diligence checklist: title, survey, leases, building condition, environmental, lender needs, and Idaho issues.8 questions answered / 11 sources](https://calibre.multisites.ai/guides/commercial-real-estate-due-diligence-checklist)[What lenders require for property condition and environmental reportsWhat Fannie Mae, Freddie Mac, HUD and SBA require for property condition and environmental reports: standards, report age, repairs, reserves.8 questions answered / 10 sources](https://calibre.multisites.ai/guides/lender-requirements-property-condition-environmental-reports)[What is a Phase I Environmental Site Assessment?What a Phase I ESA covers under ASTM E1527-21: all appropriate inquiries, RECs, how long a report stays valid, liability protection, and Phase II.8 questions answered / 15 sources](https://calibre.multisites.ai/guides/phase-1-esa-astm-e1527-21-explained)[Capital Needs Assessments for HUD, RAD and USDA propertiesWhat a Capital Needs Assessment is, who requires one (HUD MAP, RAD, USDA Rural Development), and how the 20-year plan and repair rules work.8 questions answered / 7 sources](https://calibre.multisites.ai/guides/hud-capital-needs-assessment-map-rad-usda)[How to read a property condition reportHow to read a commercial property condition report: immediate repairs, reserve tables, cost opinions, their limits, and how to use them in negotiation.8 questions answered / 5 sources](https://calibre.multisites.ai/guides/how-to-read-property-condition-report-cost-to-cure)

## Ready for your next inspection?

Tell us about the property and your timeline. We will scope the right report and send a proposal.

[Request a proposal](https://calibre.multisites.ai/request-proposal) [(208) 305-6245](tel:+12083056245)