Real estate agent helping a smiling couple sign home purchase documents at a table with house model and keys

In Washington, a notary can perform notarial acts on many different kinds of document signings. The law defines a notarial act to include: taking an acknowledgment, witnessing or attesting a signature, administering an oath or affirmation, taking a verification on oath or affirmation (jurat), certifying or attesting a copy, certifying that an event occurred or an act was performed, and noting a protest of a negotiable instrument.