She ran a multi-million dollar operating bringing women to the US so their children would get citizenship. She’ll be sentenced today

(CNN)- A woman is facing up to 15 years in prison for helping Chinese customers -- including doctors, lawyers and government officials -- travel to the US to give birth so their children would receive citizenship.

The operation Dongyuan Li ran, You Win USA Vacation Services Corp., coached families on what to say in their visa interviews, created ways for them to bypass immigration controls and housed them in upscale apartments in California for up to three months.

In two years, she had received $3 million in international wire transfers from China, the US Immigration and Customs Enforcement said. She's one of three people arrested earlier this year on charges of running Chinese "birth tourism" schemes and among a total of 19 people indicted who were tied to similar businesses, ICE said.

Those charges stem from a 2015 raid of dozens of apartments that hosted mothers-to-be, the agency said. Li pleaded guilty to conspiracy to commit immigration fraud and visa fraud.

"This was extremely bold," Daniel Showalter, a Special Agent within Homeland Security Investigations, told CNN and added investigators had looked through electronic communications between Li and her clients.

"She said it was easy to fool us. She had nothing but disdain for the US."

The indictments are the "first-ever" federal criminal charges the American government has brought against birth tourism businesses and customers, ICE said.

'Strategies to Maximize the Chance of Entry'

"Birth tourists" travel to foreign countries to give birth so that their children receive that country's citizenship. The American legal principle of jus soli means that babies born on US soil automatically gain citizenship.

That's not the case in many other countries, including Switzerland or Japan, which do not grant citizenship unless one or more parents are also citizens.

Li and others advertised their businesses online touting the US had the "most attractive nationality," military, political, technological and cultural strength, 13 years of free education, less pollution, retirement benefits, and high-quality healthcare services, the federal indictment says.

Citizenship would also give children "priority for jobs in US government, public companies, and large corporations" and would also make it easier for the parents to eventually immigrate to the US, the indictment says."America's way of life is not for sale," said Joseph Macias, Special Agent in Charge of Homeland Security Investigations in Los Angeles, in a statement earlier this year.

"Anyone who would exploit our nation's generosity and our legal immigration system should be on notice -- they may end up being the ones to pay a very steep price.

"To make it inside, the company offered customers tips on how to navigate the loopholes of the customs and visa processes. That was all listed in a document titled "Strategies to Maximize the Chance of Entry," the indictment says.

One of their recommendations was "that, for best results, Chinese birth tourists should list on their visa applications that "they intended to stay at the '5-star' hotel of 'TRUMP INTERNATIONAL HOTEL WAIKIKI BEACH (Trump Hawaii Hotel),' in Honolulu, Hawaii," the indictment says.

It also suggested customers book flights to Hawaii first and a second to California, as it'd be easier to make it through customs check that way, the indictment says.

Li also suggested women come during the early stages of their pregnancy so they were able to hide that they were pregnant. They were instructed to lie on their visa applications, claiming they'd be staying in Hawaii, New York or Los Angeles for two weeks.

Instead, customers spent up to three months in Irvine, California.

She lived a lavish lifestyle

Li claimed she served more than 500 customers and that her business was working with a 100-person team. She would use "agents and employees in China to recruit pregnant Chinese nationals" who wanted to give birth in the US, the indictment says.

And when they made their way to the US, they were housed in one of about 20 upscale apartments that Li leased throughout Orange County. Meanwhile, Li was also living a lavish lifestyle in California, Showalter told CNN.

"She was living in an exclusive area of Irvine in a house with housekeepers, her numerous Mercedes (sedans,)" he said.

Government agents have seized two of Li's properties, six vehicles, more than $1 million from bank accounts and "10 gold bars, 10 gold coins, and various gold jewelry," Showalter said. Her Irvine home was worth $2.1 million, ICE said.

"We do need to send the message that defrauding our immigration system for profit will not be tolerated and if you do so, you do so at your own peril," Showalter told CNN.

"We will prosecute you and seize your proceeds, bank accounts, vehicles, houses."