Real Estate Development Assistant

The Real Estate Development Assistant will support the firm's architecture, development, construction, acquisitions, and operations teams throughout the full lifecycle of a real estate project—from acquisition and construction through project closeout, condominium sales, and asset management. This is an ideal opportunity for someone looking to begin a long-term career in real estate development while working directly with senior leadership on active projects throughout New York City. Responsibilities Project Closeout & Closings Coordinate project closeout activities from TCO through final unit closings. Prepare building keys, lockboxes, and access systems. Test, copy, organize, and label building and unit keys. Coordinate utility account setup (gas, electric, and water/DEP). Complete boiler registrations and review for outstanding violations. Perform HPD, DOB, ECB, and other municipal compliance checks. Coordinate condominium closing documentation and building turnover. Work with the architecture team to track contractor punch list items. Coordinate final unit inspections with the property management team. Manage transition checklists with third-party property managers. Assemble warranty manuals, operating manuals, and building documentation. Coordinate insurance transitions. Assist with maintenance requests and transition-related questions following project completion. Organize project documentation and digital records. Buyer Walkthroughs & Punch Lists Attend purchaser walkthroughs prior to closing. Create detailed photographic punch lists. Coordinate repairs with contractors and consultants. Track completion of all sponsor obligations through closing. Maintain project closeout and punch list tracking logs. Follow up with buyers, attorneys, contractors, and internal team members until all items are complete. Acquisitions & Development Research prospective acquisition and development opportunities. Assist with financial underwriting and development models. Conduct market research and due diligence. Help develop relationships with brokers, owners, and industry professionals. Track acquisition opportunities and comparable sales. Operations Support day-to-day administrative and operational activities. Prepare materials for weekly team meetings. Coordinate Lunch & Learn sessions. Sort incoming mail and scan project documentation. Upload utility bills, bank statements, and project documents to Dropbox. Maintain organized digital and physical project files. Assist with general office organization and operations. Professional Development This position offers hands-on exposure to: Financial underwriting Architecture and design Construction management Condominium sales and closings Asset and property management Project management Capital raising and real estate finance Compensation $25.00 per hour Opportunity for increased responsibility and long-term growth within the firm. Qualifications Strong organizational and communication skills. Detail-oriented with the ability to manage multiple projects simultaneously. Proficient in Microsoft Office and Google Workspace (Excel experience preferred). Willingness to work on-site in Williamsburg, Brooklyn. Work Schedule 4–5 days per week in our Williamsburg, Brooklyn office. Occasional travel to project sites throughout New York City. About Mortar Mortar is an architecture and real estate development firm based in Williamsburg, Brooklyn, specializing in small- and mid-sized multifamily residential developments. Our vertically integrated platform combines architecture, development, construction oversight, condominium sales, and asset management, allowing us to oversee every stage of a project's lifecycle. We believe thoughtful design and strong financial performance go hand in hand, and we are passionate about creating buildings that are both architecturally meaningful and economically successful. #J-18808-Ljbffr