Getting married in Costa Rica requires that you both get your necessary documentation all together prior to applying for a marriage license. Make sure you give yourselves plenty of time prior to your Costa Rica wedding date.
Requirements may vary as each area in Costa Rica could have their own requirements
A Costa Rican identity card ("C?dula de Identidad") and a Certificate of Single Status issued by the Civil Registry.
Additionally, you must present this information one month prior to your wedding: name, profession, passport numbers, foreign address, birth date, place of birth, nationality, father's full name, mother's full maiden name, parents' address, original copy of passport.
if you are not a Costa Rican you must have the following documents: A passport valid for at least six months, a certified copy of your birth certificate, a certified copy of your police record, an Affidavit of Single Status.
Previous Marriages:
If the bride has been previously married, she must wait 300 days after her divorce or the death of her husband before she can remarry.
An official copy of the divorce decree or of the death certificate must be presented also. This requirement may be waived if she can prove that she is not pregnant before the marriage ceremony.
Other Tests:
According to some websites, women must take a pregnancy test. This is administered by the Supreme Court of Costa Rica at the Forensic Medicine Office (Medicatura Forense de la Corte Suprema de Justicia) in San Joaquin de Flores in Heredia, Costa Rica. Their telephone number is 506-295-3000. If the pregnancy test is negative, there is no waiting period.
You need two witnesses at your wedding.
Family relatives up to the third degree cannot be your witnesses. That means that your best bet is to choose friends or strangers for your witnesses!
Best of Luck!!