I am a US citizen & I went through a "civil" marriage ceremony with another US citizen in Tijuana, Mexico about ten years ago. During that time I was unaware that he had never legally divorced his previous wife in the US. When I found out & inquired about how to dissolve/anull our "marriage" that had taken place, I was told that due to the fact that he was already legally married, that our "marriage" was never valid & was "null and void from the inception", therefore there was nothing to be done to dissolve it. Now, years later, I have some concerns about just letting that go without further inquiry because I wish to get married to my long-time fiance here in the US. I worry that maybe I wasn't given the right advice about if anything really had to be done about that in the first place?