Typically, the attorney will provide a "privilege log" detailing items that will not be revealed. All the party needs to establish is that the client contacted the attorney about the matter with the expectation of representation. Even consultations are privileged. Formal representation is not required.
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Communication between an attorney and a party is privileged when the party speaks to the attorney for the purposes of a consultation in contemplation of possibly hiring that attorney, or if the attorney has been hired. That privilege can be waived however, if the party claiming the privilege has ever said anything about the relationship that should or would otherwise be considered privileged. If the communication was between friends with no connection to representation whatsoever, then you would have a good argument, but I imagine such a set of circumstances would rarely be admitted to under the scenario you describe. Same goes for you. Hope that helps answer your question.
The above is provided for educational purposes only and is not legal advice nor makes you a client of the Mosca Law Firm, PA. Please consult with a lawyer in order to obtain confidential legal advice that is tailored to your specific situation and facts.