I thought we went down a similar road before.
First Pastor...is he divorced or just separated?! If not divorced then marrying another is not only a sin..but illegal

As for their relationship. Again if it is legal then there is nothing to disagree with. Even if you get legalistic on it then wife committed adultery which is the one specific that Jesus mentioned.
Matthew 5:32
But I say unto you, That whosoever shall put away his wife, saving for the cause of fornication, causeth her to commit adultery: and whosoever shall marry her that is divorced committeth adultery.
And if people of the church have a problem with that then in my opinion, tough.
Now onto the issue of leadership.
1 Timothy 3:2 A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach;
Titus 1:6 If any be blameless, the husband of one wife, having faithful children not accused of riot or unruly.
Clearly states husband of one wife. Many will try and justify a divorced pastor by stating this means "at one time" however in context the Jews of this time were not having issues with polygamy. They were having problems with divorcing their wives for any reason at all. See Matthew Chapter 5 as mentioned above. And no where else in the NT is there discussion of polygamy. So it does not make sense that we would start here.
With that in mind I believe that the Bible clearly indicates that a Pastor that divorces and remarries someone other than his original wife, will be led to step down from the pulpit. God is not going to lead him to continue being a pastor against His own Word. And the Pastor should recognize this and ask to be relieved of his duties. This does not mean he cannot serve at the church or that God has abandoned him. There is plenty of other roles he can fill in the ministry, just not leading a church congregation.