
About HarborLight
I am Michael Marquis, sole operator of HarborLight Property Inspections, LLC. I provide independent lead, asbestos, and radon inspections and indoor environmental quality consulting statewide across Maine, so buyers, owners, landlords, and renovators know before they close or before work begins.
Lead Inspection in Action

Expertise Built for Maine Properties
I operate HarborLight Property Inspections, LLC, a Maine-licensed environmental inspection and consulting firm. My credentials, in the order that matters for your property, are:
Maine DEP Certified Lead Inspector LI-0526
Maine DEP Certified Lead Risk Assessor LR-0432
Maine DEP Licensed Lead Consultancy LO-0020
NRPP Certified Radon Measurement Professional 116213-RMP
Maine radon registrations: Michael J. Marquis, Small Residential Principal PSM50530; HarborLight Property Inspections, LLC, Small Residential Company SMC507
Maine DEP Licensed Asbestos Inspector
Maine and New Hampshire licensed casualty/property insurance adjuster
EPA Certified Renovator (RRP)
InterNACHI Certified Professional Inspector (CPI)
CCPIA Certified Commercial Property Inspector
IAC2 Certified Indoor Air Consultant
My specialty is Maine's older housing stock, particularly pre-1978 homes, multifamily buildings, investment properties, and older commercial structures, where lead-based paint, asbestos-containing materials, radon, and other indoor environmental concerns can directly affect renovation planning, real estate transactions, tenant safety, insurance, and long-term ownership.
As a Maine and New Hampshire licensed casualty/property insurance adjuster, I also bring post-loss perspective to every inspection. I understand how environmental findings affect claims and coverage decisions after a loss, which helps you document conditions clearly before they become disputes.
I provide XRF lead paint inspections, lead risk assessments, asbestos inspections and bulk sampling, radon measurement, environmental due diligence, renovation-related testing, and indoor environmental quality consulting. My reports are clear, defensible, and practical: they identify the condition, explain why it matters, and outline the next steps without unnecessary alarm or technical confusion. HarborLight provides independent assessment and documentation only and does not remediate its own findings.
Whether you are buying an older Maine home, evaluating a multifamily investment, preparing for renovation, managing rental property, addressing regulatory requirements, or performing due diligence on a commercial building, I provide the expertise and documentation needed to move forward with confidence. I serve properties statewide across Maine, including Portland, South Portland, Scarborough, Biddeford, and Saco. To start, send the property address, property age, and your deadline, or schedule an inspection now.
I also hold a Maine associate broker license and the Accredited Residential Manager (ARM) designation, from earlier real estate and property management work.





























