Renton-area man federally sentenced for large scale illegal cannabis growing operation

Investigators say he used his real estate connections to launder money and grow the illegal business

U.S. Department of Justice logo

U.S. Department of Justice logo

A 52-year-old Renton-area man was sentenced today in U.S. District Court in Seattle to 6 years in prison for his schemes involving the illegal manufacturing of marijuana.

According to the U.S. Department of Justice, Raymond Ng engaged in conspiracies to facilitate illegal marijuana grows in residential neighborhoods, and to launder the proceeds through businesses and properties.

“Mr. Ng’s scheme was damaging to our community on many levels,” said U.S. Attorney Brown. “The illegal marijuana grows are at risk for electrical fires, drug rip-offs by other criminals, and mold and chemical contamination from the growing process. Violating Washington State law on marijuana production harms the regulated market. And buying homes with drug proceeds and converting them to grow houses hurts homebuyers trying to get a toehold in the real estate market.”

According to records filed in the case, Ng’s involvement in the illegal marijuana business appears to have begun as early as 2016, when he purchased a house near a Renton elementary school and rented it to an employee of his construction company to grow marijuana.

The house was searched by law enforcement in June 2017, resulting in the seizure of 533 plants. This house was later sold by Ng, but authorities say he lied on his seller disclosure statement and said the house had not been used for drug manufacturing.

Investigators claim that despite the search of his property, Ng continued to help others illegally grow marijuana in residences around Seattle. He rented his own properties to illegal marijuana growers, and helped others buy properties that were used to illegally grow marijuana.

When a grow was searched by law enforcement, Ng’s construction company would renovate the property, and his real estate company would help to sell it. Through these many services, Ng helped to spread illegal marijuana grows in Puget Sound neighborhoods.

At the sentencing hearing U.S. District Judge John C. Coughenour said “Ng continued his conduct after he had plenty of warning that it was criminal, and he was at risk.”

Investigators say Ng also conspired to launder drug proceeds, working with his co-conspirator to use illegal marijuana proceeds to pay for properties. Ng used his position as a successful businessman to lie to a mortgage company so that an employee of his construction business could purchase a house, which the employee then used to grow marijuana.

Ng has been in custody since his arrest in October 2020. As part of a larger investigation, law enforcement searched Ng’s home as well as dozens of other locations in Washington, Oregon and New York seizing 13,000 marijuana plants, more than 500 kilograms of processed marijuana, 20 firearms, and millions of dollars in cash and properties. At Ng’s home they seized more than $300,000 in cash, which Ng admitted were drug proceeds.

Ng is forfeiting more than $750,000 as part of his sentence.

In asking for an 87-month sentence, prosecutors wrote to the court, Ng “used his successful business as a front to launder drug proceeds. He used his experience as a real estate agent to ease the purchase and sale of marijuana grow houses. And he used his position as the owner of businesses to lie to mortgage companies and the government. In many ways, it was precisely Ng’s professional accomplishments that allowed him to break the law.”

The case was investigated by the U.S. Postal Inspection Service and the Internal Revenue Service Criminal Investigation and the King County Sheriff’s Office. The Drug Enforcement Administration, the FBI, and Homeland Security Investigations and the Bureau of Alcohol, Tobacco, Firearms & Explosives assisted with the search warrants in October 2020.


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