Chudy Nsobundu, 57 and his wife Sandra Nsobundu, 49, were also sentenced by U.S. District to seven months in jail, seven months of home confinement and three years on probation.
The naturalized U.S. citizens originally from Nigeria brought the woman to the U.S with the promise of a $100 monthly wage. Instead, authorities say they abused her physically and verbally while she worked at their home in the Houston suburb of Katy from September 2013 to October 2015.
Chudy Nsobundu in 2016 pleaded guilty to visa fraud while his wife pleaded guilty to unlawful conduct with respect to documents in furtherance of forced labour.
According to court documents, the nanny was made to work every day from 5:30 a.m. to 1 a.m. without taking breaks and had to eat leftovers and forced to only drink milk left in bowls in which the children had eaten cereal. She also couldn't take hot showers.
Authorities said the Nsobundus prevented the nanny from leaving their employment by keeping her passport and by threatening her with physical and mental abuse.
The nanny reached out for help and was rescued following a tip to the National Human Trafficking Resource Centre. Her name has not been released.
Prosecutors say the couple knowingly caused a false visa application for the victim to be submitted to the Department of State with numerous pieces of false information.
The woman's date of birth was incorrect on the application, listing her 20 years older than she was, said she was married when she was not, incorrectly indicated the purpose of her travel was to attend a niece's graduation and falsely identified her in a letter that Chudy Nsobundu was her brother.
Prosecutors also said he made false representations under oath on the visa application to increase the chances that the application would be accepted and to hide the fact she'd be working for his family as a housemaid and nanny under conditions that violated U.S. labour laws.
Federal prosecutors said Sandra Nsobundu took the nanny to the U.S. Embassy in Lagos, Nigeria, to obtain her visa and provided her with a letter indicating she didn't speak English well, that she was to attend a family graduation and gave her a picture of her husband with instructions that she tell embassy officials he was the nanny's brother and that she was married. The nanny's husband listed on the visa application actually was the Nsobundus' driver in Nigeria.