can I have the same name for my baby as an acquaintance??

So I have a group of friends that I hang out with and two of the girls in the group have a friend whose son has the name I would like to name my baby. Her son is 6 years old and my baby will be born in January so they are not age fellows. I also met her in public places like malls or restaurants but I have never been to her house. The girls have fallen out with her in friendship and I haven't seen her in their homes  in over 2-3 years. Is it ok to name my baby the same as her son?? My husband is a bit skeptical about it but my sister thinks it's a great name and it doesn't matter. Thanks