The lawyer was waiting for Ben.

Literal

Lawyer [topic-は] Ben [obj-を] was-waiting.

待つ ('wait') takes its object with を, not に — the thing waited for is grammatically a direct object in Japanese, even though English uses 'wait FOR.' The ~ていた form gives a past-continuous 'was waiting.' The transliterated name ベン ('Ben') in katakana is the standard convention for foreign personal names in Japanese, often signaling translated source material.