...Or, I suppose, "bas Avraham v'Sarah?"
What is the most authoritative name to use: 1) In tefilo? 2) On a document such as a conversion certificate or ketubah?
If this varies by community, please identify, to the extent you know, which communities do what.
Related: How long have Jewish Converts been adding "V'Sarah" to their Hebrew names? Is this Proper? Expected?