Athena has raised $2.5 million in pre-seed funding led by a16z Speedrun to build an AI-native legal service for commercial real estate transactions. Announced November 3, the financing backs a model in which proprietary agents prepare legal work and experienced attorneys at an affiliated firm remain responsible for the advice and documents clients receive. The company says it signed 22 clients within two months of launching. Its affiliated law firm, Athena Circle, charges fixed fees per…