A friend is in a long term relationship with a lady in the Dominican Republic. She has children from a previous marriage. She has been divorced for three years. Which process would be easiest overall, not so much from a sense of time alone, but from scrutiny from the relationship? They have plenty of conversations, visits to the US etc etc. should they get married there and do a K visa? Or is adjustment of status from marriage here better. She has a tourist visa and has visited and returned several times. Thanks.