Guy I know, 59 getting divorced. 

He has amassed approximately 700 tillable acres of owned land, and rents the rest.

The wife wants 50% of the assets, including the land and machinery or wants bought out for 50% of the value of the land at today's market price.

Obviously that cash doesn't exist in a savings account, she did nothing for the business during the marriage. 

What can he do to keep his farm?