Our Team

Lessani is a Washington, D.C.–based construction management firm and a certified CBE and SBA HUBZone small business. We specialize in delivering construction management, program management, inspections, and project controls services that support complex capital projects from pre-construction through closeout. Our team works closely with owners, developers, and public agencies to ensure projects are delivered on time, within budget, and to the highest quality standards.

With deep local experience and a hands-on approach, Lessani has supported a range of vertical and horizontal infrastructure projects, including schools, commercial developments, transportation facilities, roadways, and civic buildings. Our integrated services also include construction management, structural engineering and energy consulting, allowing us to provide technically sound, efficient, and code-compliant solutions tailored to each project’s unique demands. At Lessani, we pride ourselves on being responsive, reliable, and committed to the long-term success of our clients and the communities we serve.

Yahya Aliabadi, PhD, PE

Yahya is a Structural Engineering authority with more than thirty years of hands-on experience delivering and managing design solutions for buildings, bridges, and industrial facilities. He combines doctoral-level research credentials with multi-state Professional Engineer licenses to provide code-compliant, performance-focused results for public and private sector clients .

His portfolio ranges from residential additions to DOT infrastructure and power-plant structures, covering new construction, complex renovations and alterations, and forensic investigations. Yahya provides full-service structural design, third-party reviews, special inspections, expert-witness testimony, and construction-administration support across the Washington, DC metro region .

Experience

Core Competenices
  • Structural Analysis & Design for Concrete, Steel, Masonry, and Timber

  • Third-Party Structural Plan Review & Special Inspections

  • Foundation & Retaining-Wall Engineering

  • Seismic, Wind, and Extreme-Event Load Evaluation

  • Expert Witness & Forensic Engineering

  • Design-Build, CM-at-Risk, and P3 Contract Support

  • Project Management, Scheduling, and Contract Negotiation

  • Code Compliance & Peer Review (IBC, ACI 318, AISC LRFD, AASHTO LRFD)

  • Advanced Structural Software: STAAD Pro, SAP, ETABS, ANSYS, RISA, Revit

Education
  • PhD Civil Engineering, Structures

  • MS Civil Engineering, Project Management

  • BS Civil & Structural Engineering

Certifications
  • Professional Engineer (PE), DC, Maryland, Virginia, Pennsylvania, New Jersey

John D’Adamo, CCM

John D’Adamo is a construction management executive with more than forty five years of experience across commercial, industrial, municipal, federal, and residential programs totaling more than seven billion dollars. He leads the full project lifecycle from early planning through turnover, establishing governance, controls, and risk management that keep scope, cost, schedule, and quality aligned.

His expertise includes budget development and control, procurement and contract administration, schedule management, cost estimating, design and engineering coordination, claims analysis, feasibility and development studies, project cost accounting, and quality assurance. He advises investors, banks, sureties, and owners, using a clear, data driven approach to deliver successful outcomes and resolve issues early.

Experience

Core Competenices
  • Capital planning, budget analysis, and cost control

  • Procurement strategy, contract negotiation, and administration

  • Critical path scheduling, forensic schedule analysis, and recovery planning

  • Cost estimating and value analysis

  • Design management and engineering coordination

  • Claims analysis and dispute resolution

  • Feasibility studies and development due diligence

  • Project accounting and performance reporting

  • Quality control and quality assurance

  • Client service and business development

Education
  • MBA, Management and Finance, Houston Baptist University

  • BS, Construction Engineering Technology, Spring Garden College

Certifications
  • Certified Construction Manager, CCM

Brianne Fischer, Esq

Brianne Fischer is a seasoned attorney and business advisor with over a decade of experience supporting small businesses, entrepreneurs, and local ventures in navigating legal, operational, and compliance challenges. As the founder of Fischer Consulting, she works directly with DC-area businesses to streamline contracts, structure operations, reduce risk, and ensure compliance with local and federal regulations.

Her legal career has included executive-level roles focused on managing operations, governance, and compliance in complex environments. Today, Brianne uses that experience to deliver clear, practical guidance to small business owners—from early-stage startups to established local enterprises—helping them grow confidently and sustainably.

Experience

Core Competenices
  • Retro-Commissioning and ASHRAE Level 2 Energy Audits

  • Energy Modeling and Mechanical-System Analysis

  • Utility DSM Program Management and Reporting

  • Commissioning Planning, Functional Testing, and Cx Reporting

  • Incentive and Rebate Facilitation with Owners and Contractors

  • Energy Conservation Measure Identification and Payback Analysis

  • Team Leadership and QA of Audit Deliverables

Education
  • MS Mechanical Engineering

  • BS Mechanical Engineering

Certifications
  • Licensed Attorney:
    – Illinois (2013)
    – District of Columbia (2016)

Payam Esmaili, CEM, PMP

Payam is an energy-efficiency specialist with eleven years of experience leading retro-commissioning, energy audits, and program management for commercial and multi-family buildings. His portfolio spans utility demand-side-management programs, ASHRAE Level 1-3 audits, detailed energy modeling, and mechanical-system diagnostics that drive measurable savings.

He has managed Potomac Edison’s Small Business Direct Install and Retro-Commissioning Program, guided small-business customers from opportunity identification through installation and verification . Previous roles with DCSEU, Lilker Energy Solutions, 3D Energy, and WSP have honed his ability to translate technical findings into incentive dollars and actionable upgrades .

Experience

Core Competenices
  • Small Business Formation & Structuring

  • Contract Drafting & Negotiation

  • Licensing, Permits & Regulatory Compliance (D.C. & Federal)

  • Employment Policies & HR Compliance

  • Data Privacy & Risk Management

  • Business Governance & Internal Controls

  • Local and Federal Grant/Contract Compliance

  • Operational Efficiency & Strategy

  • Board Advising & Corporate Recordkeeping

Education
  • JD, Law – [Insert Law School Name if preferred]

  • BBA, Business Administration – Certificate in International Business

Certifications
  • CEM Certified Energy Manager

  • PMP (Project Management Professional)

Behnam Daryaye Laal

Behnam Daryayelaal is a detail-oriented Project Engineer with over five years of progressive experience in civil engineering, construction project management, and cost estimating. His expertise covers the full lifecycle of mid-rise residential and mixed-use developments from early planning to successful project handover. Behnam brings a strong background in architectural systems, project coordination, and technical documentation, with a proven ability to deliver high-value projects on time and within budget.

Experience

Core Competenices
  • Construction Estimating & Budgeting

  • Design and Implement Mid-Rise Residential & Mixed-Use Buildings

  • Develop Technical Drawings, RFIs, and Shop Drawing using AutoCAD

  • Project Scheduling & Progress Tracking using Primavera P6

  • Site Coordination & Safety Management

Education
  • Masters Degree in Project & Construction Management

  • Bachelors Degree in Civil Engineering

  • Bachelors Degree in Architectural Engineering

Certifications
  • ACCES Construction Estimating

  • Workplace Hazardous Materials Information System (WHMIS 2015)

  • Autodesk Certified User (ACU)

Arian Lessani, PhD, PE, PMP

Arian is a construction engineer and building expert with over fifteen (15) years of experience in quality assurance, construction inspection, and energy consulting. He specializes in independent design reviews, field inspections, and engineering investigations across residential, commercial, and federally funded building projects. Arian provides objective, code-compliant evaluations to owners, agencies, and design-build teams, helping to identify risks, improve performance, and ensure adherence to regulatory and contractual standards.

His background spans high-performance building design review, energy audits, MEP coordination, and QA/QC oversight for complex renovations and new construction. Arian is frequently retained as a trusted independent engineer, design peer reviewer and technical advisor, offering impartial assessments that support compliance verification.

Experience

Core Competenices
  • Independent QA/QC Oversight

  • Third-Party Plan Review & Inspections

  • Energy Code Compliance & Energy Modeling

  • Building Envelope & HVAC Diagnostics

  • Green Building Standards (LEED, Energy Star, etc.)

  • Construction Deficiency & Evaluations

  • MEP Design Coordination Reviews

  • Owner’s Representative

  • Design-Build and CM-at-Risk Contract Support

  • Federal, State, and Municipal Project Compliance

Education
  • PhD Civil Engineering, Construction Claims

  • MS Civil Engineering, Project Management

  • BS Civil & Structural Engineering

Certifications
  • Professional Engineer (PE), DC, Maryland, Virginia

    PMP (Project Management Professional)

    PSP (Planning & Scheduling Professional)

    CQM-C (Construction Quality Manager for Contractors), USACE/NACFAV

    OSHA 30

    BPI- MFBT & BAT - 5071755

    ICC 79 – Residential Energy Inspector/ Plans Examiner - 10410113