Karina Alvarado Rios, Mercedes Rios Sono, Esiservis Corp Karina Alvarado, Mercedes Rios, and Esiservis do ponzi scam to friends and family Miami Beach Florida, Guayaquil Ecuador Karina Alvarado Rios was introduced through a friend since we lived in the same building. I met her in 2006, and since she did not speak English well I, and often spoke to her in Spanish with our circle of friends. She seemed to be from a good family and seemed very successful at the time, supposedly from various investments through contacts of hers in Ecuador... read full review »