It is best for the person doing the liberation to do the conditions, but if for some reason (eg. health problems) one cannot do them, people of the same lineage or the spouse can help with the conditions.
You need to apply for her liberation as “person who passed away after liberation.” The donation needed is a donation of gratitude. If your father has also passed away already, they can receive the blessing after 100 days.
For members living outside Korea and Japan, yes it is possible. Originally, you could not represent your spouse unless the spouse
1) is in spirit world
2) is seriously ill
3) is against the church
But because it is difficult for international members to come to Cheongpyeong, Cheongpyeong Heaven and Earth Training Center has allowed international members to liberate and bless for their spouses even if they are not present. Whenever Cheongpyeong tour team comes to your country or continent, both spouses should attend.
The lineage we talk about here are biological parents lineages, not the adopted parents lineages. So when you do ancestor liberation, even if we were raised by adopted parents, the 'Father's Side' means your biological father's lineage, and 'Mother's Side' means your biological mother's lineage.
Collateral liberation is the liberation of a person that is not your direct lineage. You cannot do collateral liberation unless you have liberated and completed the liberation donation for 1~7 generations on your father’s side.