Media House International is providing advice to Walshaw Moor Estates, which is locked in a lengthy legal action with Natural England. The quango is trying to impose strict regulations on the estate, including a ban on heather burning and use of vehicles.
A public inquiry into the dispute is scheduled to end this week and a planning inspector will subsequently make recommendations to Environment Secretary Caroline Spelman.
Media House executives Ramsay Smith and Andy Lines are handling the account after being brought in last week. Smith said: 'The estate believes that Natural England is acting unlawfully, unfairly, irrationally and in a discriminatory manner.'
The dispute gained news coverage in the latest issue of The Sunday Telegraph.
Walshaw Moor Estates owns 16,000 acres of land on the border of Yorkshire and Lancashire - the setting for Emily Bronte's Wuthering Heights.