McDonald Johnson Lawyers was established in 1916 with the merger of two small Newcastle law firms. It ethically practised law with wisdom for decades and gained a great reputation and respect. The firm O'Sullivan Saddington joined with it in 2018. It grew to have more than a team of 10 solicitors when it merged with a UK firm in 2019. That merger was unwound in 2021 when the firm recommenced trading as a Newcastle practice.
The main areas of practice are commercial and property transactions, commercial and business disputes and Estate planning and administration issues. The firm leverages its reputation of respect, transparency, honesty and knowledge for a mutually rewarding relationship with clients.