David counsels his business clients on a wide variety of legal issues including private equity, venture capital and other financing; joint ventures and strategic business relationships; software development contracts, licensing agreements and other technology issues; sales agency and other distribution matters; and employment and executive compensation arrangements.

David also has significant experience in securing and protecting a business' intellectual property, including trademarks, copyrights, know-how and trade secrets, through combinations of registrations, contractual restrictions and licensing agreements.

David has written and lectured to attorneys, accountants and other professionals on a variety of business law and tax topics. Topics have included: "Buying and Selling a Business: The Letter of Intent" (Chicago Bar Association); "Counseling the Small Business Client in Illinois" (National Business Institute); "Limited Liability Companies and Limited Liability Partnerships in Illinois" (NBI); and "Piercing the Corporate Veil" (Chicago Bar Association).