Wis. Stat. § 857.03
As the holder of legal title to the assets of the estate, the personal representative has standing to bring a constitutional challenge against the statute upon which the claim of the appellant is based. Estate of Peterson, 66 Wis. 2d 535, 225 N.W.2d 644 (1975). The personal representative's failure to inform the trial court that the high bidders in a sale of the testator's property had been occasional clients did not constitute a breach of fiduciary duty when the sale was publicly advertised, conducted under sealed bid, and authorized as to procedure by both the court and estate beneficiaries. Estate of Philbrick, 68 Wis. 2d 776, 229 N.W.2d 573 91975). In the absence of a statute or a decedent's written directions, the burden of the federal and state estate taxes attributable to probate and nonprobate assets falls on the residue of the estate. The rationale for the "residuary rule" has generally been that the decedent intended property transferred outside probate to be free of the usual burdens imposed on the probate estate. Estate of Sheppard v. Schleis, 2010 WI 32, 324 Wis. 2d 41, 782 N.W.2d 85, 09-1021.