John Leonard Brennan

As someone who worked for his real estate business, I didn´t see him as a client or manager but more of a humble friend who showed he was caring and devoted to his work and passion. May god watch over you and the Brennan Family.

With deepest sympathy to the Brennan family for this sad loss,

Dear Brennan Family, With a heavy heart on hearing of the unexpected loss of your love one. May God comfort you and your family in this time of sorrow.

We met through Countyline Design Center. John actively sought out ways to help better his community of friends and colleagues. He genuinely wanted to get to know the people he met along his journey regardless of their position. He was both kind and thoughtful. He will be dearly missed.

Kelly, Jack, and the entire Brennan Family- My deepest sympathy on the loss of your father. Please know that all of you will be in my intentions as you mourn this tremendous loss.

Dear Brennan, offering my deepest condolences to the family, please take comfort in knowing that God cares personally for you and your family.

As the days and weeks pass, and as you return to life's routine, may you continue to feel comforted by the love and support of family and friends. Please take comfort in the words found at 2nd Thessalonians 2:16,17.

I had the distinct privilege and pleasure of working with John at William Blair. We connected immediately because of our shared family history. John's father's family and my family were members of the same parish in Oak Park (St. Catherine of Siena). I believe it's rare to find corporate leaders with all the qualities and character that John embodied--integrity, wisdom, insight, empathy, kindness, humility and good humor, to name just a handful. The world was clearly a better place because...

To family and friends of this bright light, my condolences and wishes for peace as you - we - grieve a heavy loss. John lived an exceptional life and leaves a beautiful legacy in so many ways. So much to celebrate! Thoughts of him and you will abide with me.