Can I adopt my partner's daughter, son or daughter?

Yes, the Code of Childhood and Adolescence, in Article 68, states that the spouse or permanent partner may adopt the child of his or her partner, as long as he or she proves uninterrupted cohabitation of at least two (2) years. In this case, it is not necessary that there be between the minor and the person who is going to adopt him/her [...].

What would the process of adopting a child be like?

The adoption process has two stages: administrative and judicial. The first stage is before the Colombian Institute of Family Welfare -ICBF-, where the documents established by this entity are presented (https://www.icbf.gov.co/programas-y-estrategias/proteccion-2023/adopciones-pruebas) and the rights of the child or adolescent are verified, as well as the fulfilment of the legal requirements. This phase ends with [...]

What is the best option for LGBTIQ+ couples: adoption or civil registration?

It is not a question of a better option, but of the cases in which one or the other procedure applies, as it is not possible to replace adoption with another procedure. You can see the differences in the question "What is the difference between the adoption procedure and the child registration procedure?