* Lead client relationships alongside senior wealth advisors and serve as the in-house estate planning strategic partner and subject matter expert to Regis families. * Maintain and grow a book of Regis clients, families with balance sheets that often exceed +$100M. * Manage a select team of UHNW-focused estate strategists, and other operational support specialists to drive excellent client outcomes. * Partner with Mercer’s broader team of in-house, interdisciplinary, experts or a client’s outside advisors to integrate advanced estate planning strategies within the broader financial plan. * Support new client development through participation in prospective client meetings, industry conferences, and contributions to thought leadership content and publications. * Serve as a key partner to Regis leadership in efforts to improve and grow the platform – encompassing enhancements to our service and operating model, technology stack, as well as talent or organizational design. * Design and implement comprehensive estate plans incorporating advanced wealth transfer techniques, including irrevocable trusts (GRATs, IDGTs, ILITs, SLATs, CRTs, QPRTs), revocable trusts, wills, powers of attorney, healthcare directives, and funding-related documents. * Lead multi-generational planning conversations, including family governance structures, wealth education for heirs, trustee selection, and succession design for closely held businesses. * Advise on complex estate, gift, and generation-skipping transfer (GST) tax strategies; proactively identify planning windows and legislative risk. * Design and implement complex FLLCs and other business structures, including formation, entity selection, succession planning, buy/sell agreements, and business tax planning. * Advise on trust administration matters, trust modification and decanting strategies, and trustee/beneficiary conflict navigation. * Prepare and review deeds, real property transfer documents, and federal and state estate and gift tax returns.