A mystery company backed by Silicon Valley elites is buying up land to build a new city. Farmers say they've been pressured to sell up.

• New filings accuse the company backed by Marc Andreessen and Reid Hoffman of forcing farmers to sell up.
• Solano County farmers say Flannery Associates targeted them with pressure tactics and litigation.
• The company has bought up 52,000 acres outside San Francisco to build a utopian city.

The company that wants to create an entirely new city in California, and that's backed by Silicon Valley billionaires, has been accused of coercing farmers into selling their land.

In a court filing this week, farmers in Solano County said Flannery Associates used pressure tactics to acquire land for the new city, including evicting farmers who refused to negotiate and using expensive litigation to force residents to sell up.