If signing before the wedding, the first part of the Contract ("Undertaking") should be signed in front of a notary. If signed after the wedding, the Agreement must be signed before a judge of the family court.
The halachic portion of the Contract ("Terms of Marriage") also must be signed before the wedding. This should be done in front of two halachically acceptable witnesses --observant men who are not relatives of each other or of one of the spouses.
After signing is complete, email CWJ a digital copy for safekeeping to firstname.lastname@example.org.