Frequency/market practice: Very common; materiality qualifiers are commonly seen but often not quantified (other than specific warranties, e.g., contract value).

Frequency/market practice: Knowledge qualifiers depend upon the outcome of negotiations between the parties as to risk-sharing, and are often limited to the actual knowledge of certain individuals, subject to obligations of due enquiry of certain specified members of senior management.

Frequency/market practice: No

Frequency/market practice: Very common, but often up to an agreed date prior to signing of the purchase agreement.