Can I serve my spouse with divorce papers in person and have them notarized?

In Utah, no. But here is how (see Utah Rules of Civil Procedure, Rule 4(d)) you can serve your spouse without personal service on him/her:

(d)(2) Service by mail or commercial courier service.

(d)(2)(A) The summons and complaint may be served upon an individual other than one covered by paragraphs (d)(1)(B) or (d)(1)(C) by mail or commercial courier service in any state or judicial district of the United States provided the defendant signs a document indicating receipt.

(d)(2)(B) The summons and complaint may be served upon an entity covered by paragraphs (d)(1)(E) through (d)(1)(I) by mail or commercial courier service in any state or judicial district of the United States provided defendant’s agent authorized by appointment or by law to receive service of process signs a document indicating receipt.

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