Does an Answer to a an Unlawful Detainer Filing Limit What You Can Present in Court

My question involves landlord-tenant law in the State of: California

Tenants filed an answer to a(n) UD filing and someone has offered to cover their lawyers fees. Does what they put in their answer limit what their lawyer can present in the case?

Thanks in advance.

Does an Answer to a an Unlawful Detainer Filing Limit What You Can Present in Court