519 672 2121
Close mobile menu

Associate - Estate Litigation

Contact John
Phone: 519.660.7808
Fax: 519.660.7893

John is an associate in Siskinds’ general litigation group. John’s practice focuses on all areas of estate and capacity litigation.

Education

Western University, B.A.
University of Ottawa, J.D.

Called to the Bar in 2016
Close

Get in Touch with John Morrissey

All fields are required unless otherwise stated.

Javascript is required to submit this form.

Close message box.

About

John is a third-generation lawyer who practices in Siskinds’ general litigation group. John obtained his J.D. at the University of Ottawa, Faculty of Law, in 2015 and was called to the bar in 2016.

John joined Siskinds as an associate in February of 2021. Prior to joining Siskinds, John was an associate at a prominent law firm located in Brantford, Ontario, where he developed a passion for estate litigation, resolving power of attorney disputes and addressing issues that arise during the administration of estates. John’s practice focuses primarily on estate litigation, guardianship applications, and power of attorney disputes. John has represented clients at various levels of court in Ontario including the Court of Appeal, the Superior Court of Justice, and Small Claims Court.

Prior to law school, John attended King’s University College at Western University. While John was a student at King’s University College, he was a member of the Western University’s Men’s varsity soccer team, which participated in several provincial championships and two national championships. While at King’s, John was a two-time academic All-Canadian and was consistently on the Dean’s honor list.

In his spare time, John enjoys exercising and spending time with his wife and daughter, and his four-legged companions, Walter and Frank.

Client Testimonials

Above and beyond
Siskinds is by far the best law firm in London. I contacted them concerning an estate matter. John Morrissey and his assistant Reenya Koshaba, were there every step of the way. They were detail orientated and I was kept up to date throughout. Most importantly though, he effectively solved our problem. John's performance (and team) was above and beyond expectation. I couldn't have asked for more. - M.D.

A huge help
We had been dealing with an estate issue for a year and a half when the other law firm told us we would need to contact a second lawyer to get the issues resolved. We were referred to John Morrissey, and he was a HUGE help. He kept us informed as to the steps he was taking and the progress being made with the issue. He communicated with us regularly and clearly, without all the "legalize". We'd probably still be stuck in limbo without his help. Great job. - S.C.


Kind, patient and professional

I first contacted Siskinds LLP in June of 2021 to speak with a lawyer concerning a potential estate litigation matter. Shortly after contacting Siskinds, John Morrissey met with me to discuss my legal matter in great detail and on very short notice. Prior to contacting John I also consulted with another experienced lawyer on the same issue, however after speaking with John and hearing his position on how he would approach the issue- I decided to retain Mr. Morrissey. I am very thankful that I did so. John quickly and efficiently resolved my independent support issue and helped me achieve a great result at a fair price (all without having to go to court). Throughout the course of our working relationship, John was kind, patient and professional. He took time to explain the legal principles at play in my matter, not only to me but also to my children through conference calls and strongly advocated for my position from start to finish. He was cordial with opposing counsel and was results oriented. John's assistant Reenya Koshaba and his clerk, Heather Whitty, were responsive and detail oriented and were of great assistance in moving the matter forward expeditiously. I strongly recommend John Morrissey and the estate litigation team at Siskinds for any of your estate litigation needs. - M.P.

Knowledgeable and professional
John Morrissey represented me in a co-power of attorney dispute. He went above and beyond to help me to feel at ease and supported when I was overwhelmed during the process. He was knowledgeable and professional and worked hard on my case.
He kept me informed during the whole time, and I know without John I would not have has the successful outcome. He stood by my requests and guided me through the process. John was a confident presence and walked the extra mile!!
I highly recommend John, I could not of asked for more. Thank you John Morrissey for absolutely everything. - S.K.

Professionalism, responsiveness, and expertise exceeded my expectations
I am so thankful to have connected with John [Morrissey] who helped solve our chaotic legal difficulty last summer. I chose Siskinds simply through an online search for local Estate Law. John responded to my general inquiry in a timely manner and presented himself on the phone in a way that invoked confidence and trust. The expertise evident in that initial call was authentic.
John’s kindness, attention to detail, and great skill was so appreciated as we maneuvered a messy family situation. Through the long course of events, I could always count on John to be on top of things, never miss deadlines or important actions, keep me informed, explain procedures, and be patient with various oddities of the family situation. John’s professionalism, responsiveness, and expertise exceeded my expectations. John’s skill in dealing with the argumentative party was exceptional. I will also add, that both Reenya Koshaba and Heather Whitty were extremely helpful, thorough, and detailed in all their work and responses.
I will endorse both Siskinds and John Morrissey to anyone in need of legal assistance. I cannot express enough my gratitude and relief for John’s help in resolving this emotional family controversy. - D.W.

Notable Work and Decisions

  • Markham Village Shoppes Limited v. Gino's Pizza Ltd., 2018 ONCA 746 (CanLII)
  • 2018 ONCA 782 (CanLII) | Markham Village Shoppes Limited v. Gino's Pizza Ltd. | CanLII
  • 2019 ONSC 4343 (CanLII) | Huntjens v. Obradovic | CanLII

John is a third-generation lawyer who practices in Siskinds’ general litigation group. John obtained his J.D. at the University of Ottawa, Faculty of Law, in 2015 and was called to the bar in 2016.

John joined Siskinds as an associate in February of 2021. Prior to joining Siskinds, John was an associate at a prominent law firm located in Brantford, Ontario, where he developed a passion for estate litigation, resolving power of attorney disputes and addressing issues that arise during the administration of estates. John’s practice focuses primarily on estate litigation, guardianship applications, and power of attorney disputes. John has represented clients at various levels of court in Ontario including the Court of Appeal, the Superior Court of Justice, and Small Claims Court.

Prior to law school, John attended King’s University College at Western University. While John was a student at King’s University College, he was a member of the Western University’s Men’s varsity soccer team, which participated in several provincial championships and two national championships. While at King’s, John was a two-time academic All-Canadian and was consistently on the Dean’s honor list.

In his spare time, John enjoys exercising and spending time with his wife and daughter, and his four-legged companions, Walter and Frank.

Above and beyond
Siskinds is by far the best law firm in London. I contacted them concerning an estate matter. John Morrissey and his assistant Reenya Koshaba, were there every step of the way. They were detail orientated and I was kept up to date throughout. Most importantly though, he effectively solved our problem. John's performance (and team) was above and beyond expectation. I couldn't have asked for more. - M.D.

A huge help
We had been dealing with an estate issue for a year and a half when the other law firm told us we would need to contact a second lawyer to get the issues resolved. We were referred to John Morrissey, and he was a HUGE help. He kept us informed as to the steps he was taking and the progress being made with the issue. He communicated with us regularly and clearly, without all the "legalize". We'd probably still be stuck in limbo without his help. Great job. - S.C.


Kind, patient and professional

I first contacted Siskinds LLP in June of 2021 to speak with a lawyer concerning a potential estate litigation matter. Shortly after contacting Siskinds, John Morrissey met with me to discuss my legal matter in great detail and on very short notice. Prior to contacting John I also consulted with another experienced lawyer on the same issue, however after speaking with John and hearing his position on how he would approach the issue- I decided to retain Mr. Morrissey. I am very thankful that I did so. John quickly and efficiently resolved my independent support issue and helped me achieve a great result at a fair price (all without having to go to court). Throughout the course of our working relationship, John was kind, patient and professional. He took time to explain the legal principles at play in my matter, not only to me but also to my children through conference calls and strongly advocated for my position from start to finish. He was cordial with opposing counsel and was results oriented. John's assistant Reenya Koshaba and his clerk, Heather Whitty, were responsive and detail oriented and were of great assistance in moving the matter forward expeditiously. I strongly recommend John Morrissey and the estate litigation team at Siskinds for any of your estate litigation needs. - M.P.

Knowledgeable and professional
John Morrissey represented me in a co-power of attorney dispute. He went above and beyond to help me to feel at ease and supported when I was overwhelmed during the process. He was knowledgeable and professional and worked hard on my case.
He kept me informed during the whole time, and I know without John I would not have has the successful outcome. He stood by my requests and guided me through the process. John was a confident presence and walked the extra mile!!
I highly recommend John, I could not of asked for more. Thank you John Morrissey for absolutely everything. - S.K.

Professionalism, responsiveness, and expertise exceeded my expectations
I am so thankful to have connected with John [Morrissey] who helped solve our chaotic legal difficulty last summer. I chose Siskinds simply through an online search for local Estate Law. John responded to my general inquiry in a timely manner and presented himself on the phone in a way that invoked confidence and trust. The expertise evident in that initial call was authentic.
John’s kindness, attention to detail, and great skill was so appreciated as we maneuvered a messy family situation. Through the long course of events, I could always count on John to be on top of things, never miss deadlines or important actions, keep me informed, explain procedures, and be patient with various oddities of the family situation. John’s professionalism, responsiveness, and expertise exceeded my expectations. John’s skill in dealing with the argumentative party was exceptional. I will also add, that both Reenya Koshaba and Heather Whitty were extremely helpful, thorough, and detailed in all their work and responses.
I will endorse both Siskinds and John Morrissey to anyone in need of legal assistance. I cannot express enough my gratitude and relief for John’s help in resolving this emotional family controversy. - D.W.

  • Markham Village Shoppes Limited v. Gino's Pizza Ltd., 2018 ONCA 746 (CanLII)
  • 2018 ONCA 782 (CanLII) | Markham Village Shoppes Limited v. Gino's Pizza Ltd. | CanLII
  • 2019 ONSC 4343 (CanLII) | Huntjens v. Obradovic | CanLII

Meet My Team

Reenya Koshaba

Legal Assistant

Heather Whitty

Law Clerk