Is it common to repeat warranties at all times between signing and closing?
Frequency/market practice: Fairly common.
Is a bring-down certificate at closing common?
Frequency/market practice: Rarely, unless required in a transaction for which warranty and indemnity insurance was sought.
What is the applicable repetition standard, e.g., true in all material respects or Material Adverse Effect?
Frequency/market practice: True and accurate in all material respects is the more common repetition standard, notably after the decline of the MAE use.
Is double materiality common (a materiality qualification in bring-down at closing and in representation(s))?