1- The first thing to clarify is that for any type of divorce you must hire a lawyer as the law requires it.
Divorce of Common Agreement:
Cessation of cohabitation for at least one year and Common Agreement between the Parties. If there are minor children involved, the parties must reach an agreement regarding alimony, visitation, personal care, economic compensation and liquidation of the conjugal society, among other matters.
By cessation of cohabitation for three years and unilateral decision of one of the spouses to divorce.
Divorce by Guilt:
For serious causes based on the necessary means of proof such as drug addiction, commission of a crime or simple crime or infidelity.