Erik Mayo, Principal

Erik Mayo | Principal, Louisiana Coastal Services

Erik Mayo is LCS’ senior QA/QC advisor for all LCS operations. Erik created LCS through a longstanding interest and commitment to Louisiana’s coast. As a previous government attorney, Erik recognized the multi-agency approach that was underway to fight Louisiana’s coastal erosion, equating it to the complex multi-agency challenges the United States has faced overseas.

Seeing a need for a more holistic and specialized approach, Erik decided to focus specifically on the unique legal and policy issues facing Louisiana’s coast. Moreover, his vision was to create a professional service firm that defied the laws of outdated professional service practices, using innovative, technical solutions that would improve efficiency and save costs for LCS’ clients.

Prior to practicing law, Erik worked for various land brokerage companies throughout Louisiana. Erik spent a majority of his time running title as an abstractor, curing title and managing a team of landmen covering land and mineral acquisitions in six parishes.

In 2009, Erik acquired his law license and entered the U.S. Army where he served four years as a JAG Corps officer. Erik’s areas of practice included government/administrative law, criminal law, tax law, fiscal/contract law, labor law, international law, as well as “rule of law” advisor to Army’s counter-insurgency troops and Afghanistan’s Attorney General’s office.

Erik’s civilian practice includes areas of real estate law, environmental law, mass tort litigation, employment and labor law, complex oil & gas litigation, contract law and general commercial liability disputes. Erik is also a licensed title insurance provider in the state of Louisiana.

Certificates and Licenses:

  • Certified Floodplain Manager
  • Louisiana Title Insurance Provider
  • FEMA Certificates:
    • Benefit-Cost Analysis Fundamentals
    • Mitigation eGrants System
    • Geospatial Information System Specialist
    • Unified Hazard Mitigation Assistance
    • Engineering Principles and Practice for RetrofFlood-Proned Prone Structures
    • Hurricane Basics for Mitigation Staff
    • NIMS
    • Animals in Disaster – Community Planning
    • Introduction to Exercises
    • ICS for Public Works
    • Introduction to Public Assistance Program


  • University of South Carolina – BS (2004)
  • Mississippi College School of Law – JD (2009)
    • President of Environmental Law Society
  • US Army Judge Advocate Basic Course (2010)


  • Louisiana Supreme Court
  • U.S. District Court for the Eastern District of Louisiana
  • U.S. District Court for the Middle District of Louisiana
  • U.S. District Court for the Western District of Louisiana

Rudy Ledet, Land Management Project Manager

Rudy Ledet Louisiana land project manager

Rudy Ledet has over 23 years of land broker experience, working in the field, as supervisor and has owned and operated his own land broker company in Louisiana. His experience includes title research, abstracting, right-of-way work, leasing, curative work, seismic activities, use and possession statements, negotiations and various other land management activities.

Rudy is a south Louisiana native, growing up in Larose, Louisiana, where he worked in the seafood industry for almost 15 years prior to his work as a land professional. He offers an intimate and local understanding of the unique property issues in south Louisiana. Rudy’s tactical approach to land management through various software capabilities supports LCS’ commitment to ensuring high-quality work-product to its clients through time- and cost-effective procedures.


  • Certified Petroleum Landman
  • U.S. Merchant Mariner License


  • The University of Southwestern Louisiana (1993)
  • Bachelor of Science in Business Administration

Rhebb Rybiski, Land Management Division Leader

Rhebb Rybiski Louisiana coastal project helper

Rhebb Rybiski has over 35 years of land management experience. Throughout his career, Rhebb has been involved in virtually every aspect of the land business including, but not limited to, running title, preparing/acquiring leases, performing full blown abstracts, mineral history research, genealogy, right-of-way acquisition, posting of boundaries, enforcement, project management and supervision.

Rhebb began his land career in 1981 as an Enforcement Agent with the Louisiana Department of Wildlife & Fisheries (LDWF) Enforcement Division assigned to Lafourche and Terrebonne Parishes. Due to his outstanding achievements with LDWF, he was recruited and eventually hired by the Louisiana Land & Exploration Company (LLEC) in Houma, Louisiana in 1986. During his time at LLEC, Rhebb was promoted to Fee Land Administrator/Seismic Coordinator overseeing patrolmen and seismic activities for over 650,000 acres of land in south Louisiana. During this time, Rhebb was actively involved in numerous mitigation projects, working closely with the LDWF Seismic Sector and Louisiana’s Department of Natural Resources.

In 2001, Rhebb began his career as a petroleum landman and has held this position ever since. Rhebb has the management and subject matter experience to handle any land broker task in south Louisiana.


  • LDWF Wildlife Agent of Year in 1983
  • Shikar Safari Club International Wildlife Officer of the Year in 1984
  • Lafourche Parish Council member from 2000 to 2004


  • Nicholls State University – Criminal Justice
  • Federal Law Enforcement Academy

Mary Ann McGregor, Lead Abstractor

Mary Ann McGregor Louisiana coastal project consultant

Mary Ann McGregor has the experience and ability to handle a majority of the land professional services required for a land rights acquisition. Mary Ann has over 10 years of experience as a land professional throughout Louisiana and other states. Mary Ann serves as lead abstractor for LCS’ land broker services.

Mary Ann’s achievements include acquiring leases for more than 63% of interest owned for an existing natural gas pipeline and for exploration of new units being developed; locating and contacting over 300 surviving heirs in a producing unit in order to purchase mineral interest for a private company; and participating in ultra deep well prospects curing and abstracting title for several 9,000 acre units.


  • Mississippi State University, Starkville, MS – Bachelor’s Degree in Elementary Education
  • President’s Scholar (GPA 3.8-4.0)

Mark Dalrymple, GIS Specialist/Biogeographer

Mark Dalrymple Louisiana coastal project expert

Mark Dalrymple oversees all operations in LCS’ mapping division and provides data connectivity between LCS’ divisions.  Mark brings 14 plus years of coastal specific mapping, spatial analysis and geography experience.  Mark’s experience includes, but is not limited to, digital elevation modeling, land-parcel mapping, hydro and terrain modeling, land use and land use and land loss analysis, NASA deforestation and urban growth analysis, and various data management projects.  

Cartography/Software Skills:

  • Geodatabase design and maintenaince
  • GIS mobile and internet/intranet design
  • Digital elevation (DEM, DSM) creation 
  • Land suitability modeling 
  • LIDAR to terrain modeling
  • Flood model mapping
  • Land cover land use mapping (NDVI, vegetation classificaitons)
  • Cadastral  and utility mapping

Teaching Experience:

  • Nunez Community College, Adjunct
    Instructor. Physical Geography
    (GEOG 1200) – Topics included
    introduction to cartography,
    climatology, topography and


  • B.A. Anthropology – Colorado State University 1998
  • B.A. Geography – University of New Orleans 2006


  • 11th Annual Coastal Development
    Strategies Conference. Presenter:
    “Mississippi Smart plan, Land
    Suitability Using GIS”.