Synonyms for Co-respondent:

n.

contact, divorce, ex, dissolve, alimony, dissolution, joint custody, access. co-respondent (noun)
corespondent.
person (noun)
corespondent.

Other synonyms:

contact, alimony, joint custody, divorce, ex. access. Other relevant words:
contact, dissolve, access, dissolution, ex, divorce, alimony.