In the interim, Wallace was suspended from the practice of law on June 30, 2015, and disbarred on April 26, 2016, for willfully abandoning a different client and engaging in dishonesty or misrepresentation. See In the Matter of Wallace , 299 Ga. 3, 785 S.E.2d 534 (2016). "Substantial delays in the appellate process implicate due process rights, and we review appellate due process claims under the four-factor analysis used for speedy trial claims set forth in Barker v. Wingo , 407 U. S. 514, 92 S.Ct. 2182, 33 L.Ed.2d 101 (1972)."