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Contract Documents

NEEDDA has created model contract documents, identified below, that are intended to serve as a resource for firms delivering environmental and engineering due diligence services and their clients.

FAQs regarding these contract documents may be found on the About Us page of this website.

NEEDDA Model Master Services Agreement – MSA for multiple assignments for repeat clients

NEEDDA Model Terms and Conditions – May be attached to and incorporated into due diligence proposals

NEEDDA Model Additional Terms and Conditions – A simple one-page addition in the case of a client-designed contract, addressing certain risk transfer clauses

NEEDDA Model Reliance Letter – Traditional reliance letter for a client’s lender or borrower, etc.

NEEDDA Model Non Reliance Letter – For use when a third party is to receive a copy of your report for information purposes only, but not for reliance purposes

User Guides

Due diligence investigations provide valuable information to help owners, buyers, sellers, and lenders make informed decisions to understand and control risks associated with commercial real estate. Although ASTM has developed related standards, it is important to understand what can and cannot be accomplished by these reports. If you haven’t had time to study the standards, the following user guides can provide valuable information to help you work with your consultants to develop a common understanding of your objectives, identify the right scope of work, and understand the limitations of the work.


NEEDDA Property Condition Assessment (PCA)
NEEDDA Environmental Site Assessment (ESA)
NEEDDA Seismic Risk Assessment/Probable Maximum Loss Assessment (SRA/PML)