WASHINGTON -- D.C. plans to begin eminent domain proceedings to make way for the Washington Nationals' new home in Southeast.

In just over 90 days, 23 property owners on the 21-acre stadium site will be forced to vacate.

"The condemnation action, what this means for property owners, they then have 20 days to dispute the District's claim for the condemnation," said Tracy Hughes, of the Office of the Attorney General. "The declaration of taking essentially gives property owners notice that they then have 90 days to vacate the property."

Among the property owners are an asphalt company, a sculpture school and adult entertainment businesses. Of the 23 properties, only one owner has agreed to sell. Most of the property owners say they're being low-balled.

"The city so far hasn't told me how they came up with a figure of an offer of $6.7 million," said Robert Siegle. "And because they haven't been able to divide or explain to me how they came to such figures, I'm letting my lawyer talk to them."

Siegle owns nine businesses. Most are adult entertainment venues. He said he'll take his chances in front of a judge.

"It's just simply a matter of property owners and the District of Columbia deciding what is the fair estimated value of that property," Hughes said. "The judge ultimately makes that determination."

After 37 years, District Transmissions owner Joe Woodridge also is refusing the offer. He said selling a business is about more than selling the land.

"If you're going to move, you know, the clientele is going to drop and everything," he said. "It's never going to be like it was before."

He said other costs of relocating his business should be figured into the sale price.

The D.C. City Council put a $165 million tab on the purchase of land, infrastructure improvement and environmental cleanup, and the District has already pledged $97 million to purchase the property for the stadium.