In Memorial

Alan H. Leff

Date of Death: January 10th, 2022
9 Shevat 5782


Alan H. Leff, 77, treasured soulmate and best friend of the late Barbara Bishov; loving father of Janice (Robert) Schlumpberger, Randee (Arthur) Silverman, Michael (Janice) Leff and stepfather of Mindy Leonard and Brett (Kate) Bishov; cherished Papa of Leo and Alex Silverman, Jessica Leff, Zachary, Justin and Cameron Leonard and Chase, Carson and Charlotte Bishov; devoted son of the late Florence and Leo Leff; dear brother of Diane (the late Joel) Klein; adored friend of Joan Goldburg; special uncle, cousin and friend of many. In lieu of flowers, donations may be made to Aishel House (, donate blood in Alan's memory or make a donation to the charity of your choice. Chapel service Thursday 10:00 AM at Shalom Memorial Funeral Home, 1700 W. Rand Road, Arlington Heights. Interment Shalom Memorial Park. For the link to view the service virtually, Shiva information and to leave condolences: or (847) 255-3520.

Service Information

Service : Thursday, January 13th at 10:00 am
Service Location: Shalom Chapel Service - Shalom Memorial Funeral Home

May His Memory Be A Blessing.

If you are unable or choose not to attend the service in person, you are invited as a guest to virtually view the funeral service for Mr. Alan H. Leff

Funeral service will be held on Thursday, January 13, 2022 at 10:00 AM Central Standard Time.

Please click the following link view the funeral service:

Shalom Memorial Park
1700 W. Rand Road
Arlington Heights

Shiva Information

Due to Covid and out of concern for family and friends, Shiva will be private.

A celebration of life for Alan will be held at a later date.

Cards of condolence may be set to
The Leff Family
c/o Shalom Memorial Funeral Home
1700 W. Rand Road
Arlington Heights, Illinois 60004

Aishel House
Donate blood in Alan’s memory
Make a donation to the charity of your choice

View Shiva Page & More

Guest Book & Memories

Share Your Memories of Alan H. Leff
Share Your Memories

January 17th, 2022

I'm so very sorry for your loss. May you find peace and comfort in all the wonderful memories. Sending my deepest condolences.

~Irene Mello (Buzyna)
~Friend of family, Chicago, IL

January 16th, 2022

I am so sorry for your loss. Alan left a lasting impression on all who were fortunate to know him - his family, friends and business associates. May you always carry his memory in your hearts. Please accept my heartfelt sympathy.

~Nina Buzyna
~Friend of family, Deerfield, IL

January 16th, 2022


I went to high school with Alan. I
remember our senior year sharing
a fun lunch with Alan and Bob.
Many of us lost contact when we went off to college and on with our

The years have flown by. We caught up again when I decided to
plan a 75th celebration at Ravinia
Weeks before our party,Alan invited me to his home for a holiday dinner. His kids were wonderful. It was great to meet his family.

With Alan's passing, I listened to his beautiful family speak so lovingly about their father. Alan was so loved by his children.
All of them knew how lucky they were to have Alan as their father.
He was so devoted and loving to them as they were to him.

But it isn't just his family but all those that knew Alan had the same
feelings that he was the best in so many ways.

Alan loved people and people loved Alan. He will be missed by all.

I'm happy that Alan and I renewed
our friendship.

~Friend, Deerfield

January 15th, 2022

I went to high school with Alan. I remember senior year having the most fun lunch
when I ate with Alan and Bob. All of us lost contact when we went off to college and
on with our lives.

We caught up again when I decided to plan a 75th celebration. We both lived in
Deerfield. Weeks before our party, Alan invited me to his home for a holiday dinner.
His kids were wonderful. It was great to meet his family.

I listened to his beautiful family speak at the service. Alan was so loved by his children.
All of them knew how lucky they were to have Alan as their father. He was so
devoted and loving to them as they were to him.
But it isn’t just his family but those who knew him had the same feelings that Alan
was the best in so many ways.
Alan loved people and people love Alan.
He will be missed by all. I’m happy that we renewed our friendship.


~Friend, Deerfield

January 13th, 2022

Jerry and I met Alan in 1977 when he came to our house to do our taxes. Through the years we became friends and shared good times together.
Completing our yearly taxes became "Dinner and Taxes" Alan arrived at our home around 6:00 p.m. for dinner and then taxes. We enjoyed our time together. We shared stories about our children, grandchildren, vacations, and restaurants. Sometimes we even had political discussions!! I never would have thought preparing one's taxes could be fun!!

Listening to his family speak about their dad and share stores about him, made me laugh and cry. I learned that Alan was a gift to all who knew him He was "one of a kind" We are grateful to have known him and will miss him

~Helen and Jerry Tivers
~Friend, Glenview, Illinois

January 13th, 2022

So very sorry for your loss. It was a pleasure to have known him. He was full of charm and was very kind and generous to me always. I AM ESPECIALLY GLAD THAT WE WERE ABLE TO ENJOY HIS COMPANY A FEW WEEKS AGO. During this difficult time hang on to your wonderful memories and find comfort in them.

~jeri siegler
~Jodi MIL, Volo,Il

January 13th, 2022

For the past 30 years, Alan was a friend, a mentor and family. After college, I had the opportunity to work with Alan and Barb at Quality for many years. One of my fondest memories was going to Atlanta every year for the home health care expo. Rather than flying, Alan always insisted we drive the 12 hours. The only reason he would say, was to stop at every Cracker Barrel restaurant so Barb could browse the gift shops. A simple gesture for the one he loved. I think we stopped at 13 making our 12 hour drive 14 hours. Always thinking of others was one of Alan's greatest traits. I can't thank him enough for allowing me to be a part of his life.
My deepest condolences go to all his family and friends. He will be missed deeply by all.

~Jason & Jill Feldman
~Friend, Deerfield

January 13th, 2022

I worked with Alan at Quality Healthcare. Whenever Alan came into the office he always had a smile on his face and in his voice. I haven't seen Alan in years, but I guarantee, if I saw him on the street he would start a conversation or tell me something funny He was a very caring, sweet man that loved all. Rest in peace Alan.

~Dori Tabor

January 13th, 2022

"Big Al" as he affectionately came to be known in our circle loved a good meal, a good laugh, and his family. In the many years that I had the pleasure of interacting with him I was always impressed with his ability to make others comfortable. He had a warm spirit, enjoyed dropping a well timed one-liner, enjoyed a good joke, and believed in teaching meaningful life lessons to his children. His smile was warm and his zest for life enthusiastic. You will be missed Big Al....thank you for your kindness, the good times, and the laughter over the years. Rest in peace.

~Carlos Bates
~Friend to son Michael, Tampa, Florida

January 13th, 2022

I met Alan through a friend of mine and he started doing my taxes. I am a realtor and he and Barbara sold their homes with me and bought a home together and I helped his children buy their properties as well. He was the one who suggested that I start investing to save for the future. He was always fun to be around and one of the nicest persons you would ever want to meet. We also both had an interest in sailing and boating. I raced in the Chicago to Mackinaw race and I learned he was on the boat that started the race. Alan was a very interesting and special person! He will be missed by me and all who knew him…

~Lenora Knudson
~Client & Friend, Wilmette, IL

January 13th, 2022

I met Mr. Leff shortly after my family moved back to the United States from Africa. I was going into junior high school and adjusting back to life in America was very hard for me. That said, Mr. Leff Janice and the entire Leff family took me in and made me feel at home. Often spent more time with Mr. Leff and left family than I did at my own house. I have wonderful memories of sharing meals and outings and just camping out in the left household. Mr. Leff was a wonderful man and I am deeply sorry that he is no longer with us. I will never forget his kindness and cherish my memories of him forever.

~Family friend, Boca Raton, FL

January 13th, 2022

I met Alan in Feb 2004 when I started working for his company Quality, Alan was the greatest boss to work for! He was encouraging, very fair, extremely generous, a great mentor and became a great friend - Alan will be missed and always be very loved! Rest In Peace dear friend !

~Juan Martinez
~Friend, IL

January 13th, 2022

Alan, He was something special! A friend and business associate, mentor, teacher, confident, advisor, life coach, an all around good guy. We had 45 years of friendship. He was an influence in every part of my life. We had so much history together, socially and in business. His influence in all the companies I bought or started was invaluable. His insights and common sense approach to business was right on. The business community lost a special participant. Alan will be missed.

~Wayne Williams
~Business and Friend, Inverness, IL

January 12th, 2022


Amma & Papa reunited, Rest in Paradise

~Grandson, Berkeley, CA

January 12th, 2022

I met Alan when I was a little girl, and he came over to do my parents taxes each year. I was always so excited for his annual visit, because whenever he came to visit he was so present and made me feel like the stories I had to share were the most important thing he had on his agenda that evening... His annual visits made such an impact on me, that as a 7 year old, we went on a family trip, and I wanted to gift him a seashell from our vacation. Every year thereafter, for at least a decade, Alan came back with that shell in his briefcase; always showing me that he carried it with him before getting down to any work; and making me feel like I mattered each and every time he came to visit. Grateful to have had those special interactions with him many moons ago.

~Andrea Tivers
~, Oakland, CA

January 12th, 2022

I met Alan in 1979 his firm Leff & Klein did our accounting for our family and our pizza business . Alan and the rest of group were regular customers.Alan always enjoyed anchovies .When he would come in to pick up an order he would tell me wonderful stories of taking cruises and visiting Italy regularly..RIP Alan you will be missed

~Jerome Schuetz
~Friend, Sun city az

January 12th, 2022

Alan and I grew up a few blocks from each other. We were both fortunate in having a special group of friends. Alan and I stood up for each others weddings as well as the weddings of some of our friends. Alan and Bob Calderon became regular attendees at Ricks Golf Day which was held in memory of Rick Lava and benefited the American Diabetes Association. Cheri and I had the pleasure of playing golf with Alan and Joan soon after last years RGD event. Cheri and I have many great memories of our times together. Alan was a very special person that we were lucky to have in our lives.

~Alton L Neiman
~Friend, Lake Geneva, WI

January 11th, 2022

Alan was a great friend for over 63 years which began as classmates at Sullivan high school (class of June1962, both of us holding up the upper 80% of the class)We worked together for several years parking cars at Weinstein’s funeral home on Devon Ave. Alan inspired me to finish college after being in the military for 4 years in the late 60’s. And I figured if he could get a degree in accounting, than how hard could that be. And so began our careers. I vaguely remember working with him on his first accounting client while he was still at the Northern Trust. Naturally, the client thought our fee was too high.
There were many good times and events over that 60 plus years that we shared, much too many to record here, but I just wanted to say that Alan was the best friend anyone could ask for.
Thanks Al and you will be remembered by all who were fortunate to be your friend.

~Bob Calderon
~Friend, Plainfield Il

January 11th, 2022

I had known Alan since the 6th grade at Armstrong school. Although we had lost touch these last years I was very taken by his passing, My fondest memory was at the senior prom where the future CPA divided the dinner check three ways although there were four couples. Since he paid the bill he later asked me why his dinner was so inexpensive, I was never certain if he knew the reason.

~Stephen and Linda Pearl
~Friend, The Villages Fl

January 11th, 2022

I'm a friend of his son Michael. I had the pleasure of meeting Alan, I believe, on two or more separate trips to Illinois. I spent some time with he and Michael, and I could tell they have a shared sense of humor. As I recall, Alan was very friendly and down-to-earth. I very much enjoyed speaking with him. I know he will be missed by his family, and I'm very sorry to hear that he passed.

~Jared W.
~Acquaintance, Arlington, TX


Yahrzeit Dates For Alan H. Leff

Tradition directs us in the evening before the Yahrzeit dates listed below, the anniversary of our loved one's day of death, we are to kindle a candle in our homes as a reminder of their place in our hearts.

Gregorian Date
8th of Shevat 57831/30/2023
8th of Shevat 57841/18/2024
8th of Shevat 57852/6/2025
8th of Shevat 57861/26/2026
Click For Yahrzeit Blessings
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