Geoff Block

Geoff Block has over 30 years of investment experience in both public and private companies. In 2012, he left Wall Street to manage his family’s investment holdings. Together with his wife, Kim, he formed RLB Squared in 2013, focusing on investments such as hedge funds, real estate, and operating businesses, particularly in the Lowcountry since 2014. They have been active philanthropists, founding Lowcountry Strong to aid Hurricane Matthew victims and establishing Hungry Heart to provide over 30,000 meals to those in need during the pandemic. 

In 2015, the Block family relocated from Franklin Lakes, New Jersey, to Bluffton, SC, seeking a better quality of life. Geoff serves on the Board of Directors of the Community Foundation of the Lowcountry and in 2024 joined the Coastal Community Development Corporation to increase housing for the local workforce. He is also involved in the redevelopment of the Sergeant Jasper Golf Club in Ridgeland, SC. 

Before founding RLB Squared, Geoff worked at Crown Advisors, co-managing long-only and long-short funds. He graduated from Tulane University in 1994 and remains active in the Tulane community.

Cathy MacKinnon

Cathy and her husband, Mike, first began visiting Palmetto Bluff in 2018 and currently live in the May River Forest neighborhood. Prior to moving to the Low Country, the MacKinnons lived in Winnetka, Illinois, where they raised their family. They have two grown children, Max and Catherine. Cathy is one of the owners and operator of Prime IV Hydration in Bluffton. Cathy is passionate about an active lifestyle, health, wellness, exercise, community and fun. Cathy joined the PBNA BOD to serve the community and this amazing place we’re blessed to call home.

John Meltaus

John and Kate Meltaus adopted Palmetto Bluff and the Lowcountry as their home in 2020, having relocated from Massachusetts. John had a lengthy career as a business attorney advising public and private companies and investors internationally in the technology, public finance, private equity and venture capital arenas. John remains an active board member and strategic advisor to several private companies. John and Kate engage in a range of pursuits at PB, including golf, boating and fitness, but primarily enjoy our community and connection to nature.

Holly Miller

Holly Miller and her "significant other," Milton Ezrati, first visited Palmetto Bluff in 2016, just prior to the opening of the new hotel.  They purchased a lot in 2021 and moved into their Moreland home at the end of 2022 as full-time residents. Holly had a 45-year career running global operations teams in the investment management business, primarily in NYC, Chicago, suburban Philadelphia, and London.  She retired in September 2025 from the U.S. Securities and Exchange Commission, where she served as a senior policy advisor for five years.  Holly's advisory experience includes her current leadership of the advisory board for a small fintech firm, as well as serving on a private day/boarding school board in Virginia and multiple NYC co-op boards in the past.  She is an active volunteer with PB’s Worship on the Water and Bluffton’s Boys' and Girls’ Club.  Holly enjoys playing mahjong and canasta and especially loves spending time with her three grandsons.

Frank Riddick

Frank and Carol Riddick purchased property in Palmetto Bluff in 2012 and became full-time residents in 2017. Carol is a retired veterinarian, while Frank had a long business career as a CEO for private equity-owned businesses. He recently stepped down as President and CFO of the WWE. The couple has three grown sons and two dogs.

Allen Roth

Allen Roth and Kim Mazzei-Roth moved into River Road permanently in 2022 after vacationing in the HH area for over 12 years. They relocated from the New Jersey/Philadelphia area and are both now fully retired. Allen was a professional structural engineer for over 40 years and owned the firm Joseph B. Callaghan, Inc. for seven years until he sold it in 2021. His expertise focused on forensic engineering and strategic advising. He enjoys tennis, fitness classes, bowling, swimming, and the bourbon/cigar club. He has three children and seven grandchildren who thoroughly enjoy vacationing in Palmetto Bluff.