She was born in 1949. Monica was married to Patrick Chinamasa. They have four children, Tinotenda, Chengetai (deceased), Kangai and Camuchirai. Patrick Chinamasa started off his political career as a Deputy Agriculture Minister. Divorced in 2007 when Patrick got married to Chiedza Faith Velemu. 
No information could be found on her Junior or High School, or any tertiary education.
In February 2003, Patrick Chinamasa, the minister of justice, legal and parliamentary affairs, sent the police to arrest Peter Baker, a white farmer. Mr Baker had refused to vacate his farm, Rocklands, after successfully challenging its seizure in court. He told The Telegraph that the Rocklands farm had been allocated to his wife. She has subsequently relinquished it and it had since been reallocated by the government. Richard and Cally Yates of Lawrencedale 3 Farm, 95 miles east of Harare, fell victim to the justice minister. For the past six weeks Mr Chinamasa's wife, Monica, has been living in the farm cottage, less than 30 yards from the Yates family's home. 
THE Tobacco Association of Zimbabwe (TAZ) yesterday alleged corruption in the tobacco industry, with Tobacco Industry Marketing Board (TIMB) board chairperson Monica Chinamasa’s name coming out prominently as one of the individuals causing confusion in the sector. Chinamasa is the wife of Patrick Chinamasa and also founder of the Zimbabwe National Farmers’ Union (ZNFU), which farmers strongly believe constitutes a conflict of interest. 
Parliament's lands and agriculture committee has ordered the Tobacco Industry Marketing Board (TIMB) managers to submit financial statements amid claims of corruption against the Monica Chinamasa chaired board. Committee chair, Justice Mayor Wadyejena Tuesday ordered TIMB chief executive, Andrew Matibiri to submit the entity’s financial statements dating back to 2015, with clear details outlining the total collected through the tobacco levy and how it was used. Rodney Ambrose who is Zimbabwe Tobacco Association (ZTA) chief executive, criticised the board. We do not believe that TIMB is a neutral body.
Tobacco industry stakeholders also expressed concern over the secrecy surrounding over US$20 million which must go towards afforestation. The afforestation fund is suspected to have been unlawfully channeled towards a tobacco seed project being run by Boka Tobacco Auction Floors Floors.
The TIMB board has also been in office since 2009 and was supposed to be serving a three year term.