Are There Sins That Indefinitely Disqualify From Eldership?

1 Timothy 3 Titus 1
Joel Webbon

From Nate Werner – If a Christian man commits a sin in the past that would disqualify him from eldership (e.g. – looking at porn, but has since repented) is he forever disqualified? More generally, if a man did not meet the qualifications for eldership in the past, but now he does, is that man forever disqualified?