Marcus counsels business clients from a broad range of industries in all matter of business disputes. Marcus defends directors and officers in litigation involving fiduciary duty claims, shareholder disputes and allegations of minority oppression. Marcus also litigates disputes over trust and estate matters including disputes involving fiduciaries, will contests and trust litigation.

In addition, Marcus serves as national counsel for domestic and international construction companies handling all aspects of construction law including drafting contracts, pursuing and defending claims, arbitrating disputes, and litigation matters in various jurisdictions throughout the country.