I hope no one takes me fishing!
Please note I am not trying to convince! anyone especially the Senior Board members, just putting my views forward...brainstorming

I still doubt Michael and Kay divorced in Godfather 2

Michael is wearing his wedding ring in the notably older Michael scene, in Godfather 2 so either Michael is in denial that “Kay was gone” or Michael and Kay had not divorced

Ref: thread Coppola Denies Orange Symbolism post by user Turnbull on 01 September 2018
“One of the things that makes the GF Trilogy great is Coppola's fanatical attention to even the smallest details There is no way those oranges appeared accidentally or coincidentally.”

Hence I believe there is no way the wedding ring was left accidentally or coincidentally

I also doubt "legitimate" citizen Michael “That I have never been arrested or indicted for any crime whatsoever. That no proof linking me to any criminal conspiracy” would consider “His "legitimate" business associates would arouse their [kids] suspicion” or his "legitimate" business people “his cronies”

When Godfather 3 came around / in between 2 and 3,
1. the children were with Kay
2. Michael and Kay had divorced