Contact Information Page

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Accounting Receivable / Accounts Payable
Tammy Bystrak
(716) 885-8538 ext 222


Collections/ Payments
Rose Pappagallo
(716) 885-8538 ext 224


Tenant Service

Emergency Phone Number
(716) 609-1686


Greenleaf Real Estate
1131 Delaware Avenue
Buffalo, NY 14209
Tel: (716) 885-8538
Fax: (716) 882-2176

Greenleaf Real Estate (aka Greenleaf & Company) is a real estate, property management, construction and development company that owns and operates close to 500 apartment units in the City of Buffalo.

Call us today at (716) 885-8538 to "Discover City Living"



Jim Swiezy

Mr. Swiezy is President of Greenleaf Development & Construction Company; a commercial and residential property management and development company located in Buffalo, New York. Greenleaf currently owns and manages approximately 250,000 square feet of commercial space and 650 apartments. Greenleaf presently has 27 full and part time employees, and has been in business since 1986. Project management, development, leasing and construction are done in-house for all current projects. Mr. Swiezy is responsible for the acquisition, construction and development of approximately 150 million dollars of real estate over the past 20 years.

James R. Swiezy is a graduate of Manhattan College with a Bachelor of Science Degree in Chemical Engineering and a minor in Mathematics.

James R. Swiezy has held positions over the past 10 years which include: Engineering Manager, Plant Manager and Global Business Director. In 2005 he completed a two year assignment in Munich, Germany where the primary focus was to build a new chemical plant in Shanghai, China (25MM Euro). Mr. Swiezy has been actively involved in numerous development &construction projects throughout WNY. Mr. Swiezy personally oversees the day to day operations, management, and development of all ongoing projects such as 1040 Delaware Avenue, & The Bosche Building (916 Main St.). Mr. Swiezy is actively pursuing strategic opportunities for future company growth.


William Hamilton CPA

Bill Hamilton has significant Financial Management experience covering a wide range of industries. Mr. Hamilton has been a Chief Financial Officer since 1985. He spent 15 years as VP Finance of TAM Ceramics – a $80 million manufacturing Company in Niagara Falls, NY. He also spent 10 years in Public Accounting as an auditor and management consultant.

Mr. Hamilton was CFO of North Forest Group of Companies in Williamsville, NY from 2005-2010. North Forest is a developer, construction company and real property manager that specializes in affordable new roo office space in Buffalo, Rochester and Denver.

Mr. Hamilton has been with the Greenleaf Group of companies since 2010. He helped to streamline IT, accounting and administrative areas. He has also served as the Project Accountant for the $5 million project at 1040 Delaware Avenue that converted an old nursing home into upscale apartments and commercial space. He will fill the same role for the Bosche project on Main Street in Buffalo, NY.


Sarah Witherell

Sarah started with Greenleaf & Co. in 2011 as an Accountant. She then took over the payroll, Human Resource department and Residential Property Manager positions. She is now the Manager of New Business Development and Operations and is thrilled with the outcome of the Campus Walk Project. She is excited to start Phase 2. She is a graduate of Rider University in Lawrenceville NJ with a double major. Sarah is very family oriented and enjoys discovering new things to do and learn with her family.


Deborah Witherell

Deborah joined Greenleaf & Co team in 2016. She has 38 years of experience in business management. She has certifications in Heating, Air Conditioning, Energy Star Building Analyst and Envelope Professional. She is always interested in learning new things and taking on new projects.


James Webb

James is a 2013 graduate of Buffalo State College where he studied Urban Planning and Environmental Science. James has been a part of Greenleaf team since 2013 working to keep our properties maintained and provide quality apartments for new tenants. Living in Elmwood village, he is proud to work within his community and always willing to help our residents with any issues. James is excited to work with Greenleaf into the future promoting the economic growth and development of Buffalo.


Kristine Assue

Graduated from Buffalo State College in 2015 with a BA in Business Administration. After graduation she worked at Enterprise Rent a car in their management trainee program where she gained experience in providing excellent customer service, sales and team work. Now she decided to pursue a career in property management and real estate with Greenleaf and Company. In her free time, Kristine enjoys going out to local restaurants with friends and traveling..


Felicia Scheck

Felicia started working with Greenleaf & company in February of 2015 as a receptionist. She is very family orientated and spends a lot of her free time with her younger siblings taking them to various places and doing various activities. In her down time she enjoys reading various novels. She likes any type of book as long as it is captivating. She graduated from Emerson High School with a diploma in culinary arts.


Gordon Nellis

Gordon is a 2012 graduate of Buffalo State College where he studied Political Science and Geography. Gordon especially enjoys interacting with our current tenants and resolving any issues that come up. Working as the leasing agent for the company, Gordon has found that keeping our residents content breeds success in all areas of the company. That of course is not to say that he does not enjoy matching potential tenants with safe, affordable homes in the Buffalo community, a community in which he himself is a member. Gordon is also active with Greenleaf's commercial real estate division. Greenleaf's portfolio of commercial spaces within the City continues to expand in tandem with the positive economic growth within Buffalo overall.


Damone Miller

Damone Miller grew up in Buffalo, NY right on Linwood and W. Ferry. Going to McKinley High School he majored in advertising art and then served in the United States Marine Corp until 2002. After attending Bryant and Stratton College he continued education at Buffalo State College. Damone is a licensed NY state real estate salesperson, father of six. He enjoys digital art, illustration and practicing martial art (Isshin-ryu and Tai Chi).