(905) 415-1636

Quinteros v. Diaz (2023)

Background

This case involves a father’s request to modify child support payments due to a significant change in circumstances caused by the COVID-19 pandemic.

The parents began cohabitation in 2010 but separated in 2012, and they share joint custody of their two children, aged 12 and 11.

In 2017, the father was ordered to pay $388.00 monthly in child support, although his obligation was only $300. He agreed to the higher amount in recognition of the children’s and mothers’ needs.

In 2020, the father was laid off from his job because of the pandemic, and he started accumulating arrears in his child support payments. The father attempted to discuss this change with the mother, but she was non-communicative and had yet to disclose her Notice of Assessments from 2018 onwards.

In 2022 the father filed a motion to change the Final Order concerning child support.

Issues

1. Have the grounds for an uncontested trial been established?

2. Should the order for child support be amended?

Analysis

Grounds for an Uncontested Trial

An uncontested trial is when only the party making a claim provides the court with evidence and submissions. Rule 10(1) of the Family Law Rules allows the respondent to a motion 30 days to respond, failing to which is the option to proceed to an uncontested trial.

In this case, the mother failed to attend the case conference and the trial, despite being served the necessary documents. Therefore, the court determined that the grounds for an uncontested trial were established.

Amendment for Child Support

In considering the amendment for child support, the court referred to the Supreme Court of Canada case R v Colucci, 2021 SCC 24, which recognized that income decreases, including loss of employment, are common and should be considered when determining retroactive variations in child support.

If the payor is seeking a retroactive variation in child support, they must:

  1. Clearly demonstrate the reasons for the decrease in their income, allowing the court to determine the significance of the change.
  2. Provide evidence that the change in income was beyond their control and not a voluntary choice.
  3. Give proper and adequate notice to the payee regarding the intention to seek a retroactive adjustment in child support.

The father demonstrated that his income significantly decreased due to the loss of his job, which was beyond his control. He also provided notice of his intention to seek a retroactive decrease in child support and attempted to communicate with the mother about the change.

On the other hand, the mother failed to disclose her increased income and did not inform the father of her change in financial status. This lack of financial disclosure by the mother impacted the set-off amount of child support and led to the accumulation of arrears.

The court found that the mother was no longer on social assistance and had found employment, increased her income, and failed to notify the father of the change in her financial status. Consequently, the court determined that it would be fair to decrease the father’s child support retroactively from January 1, 2018.

The court found that the father had overpaid child support between 2018 and 2021, and he was entitled to a retroactive adjustment and credit for any overpayment resulting from the adjustments. Based on both parties’ tax returns, the court ordered the mother to pay the father’s child support on a set-off basis for 2020, totalling $468.

Additionally, the mother was required to provide her income tax returns and Notice of Assessments for 2021 and 2022. A future hearing was scheduled to make any necessary retroactive adjustments.

Furthermore, the court awarded costs of $1000 to the father, to be paid by the mother within 30 days. This decision was based on the mother’s conduct of failing to disclose her financial information.

The court emphasized in this case that full, fair, and timely financial disclosure is essential for an effective child support system.

More From the Feldstein Blog

Ontario Family Law, Translated

The statute is dense. The stakes are personal. These articles unpack the parts clients ask about most.

Case Blog

Razavi v. Golzari 2026 ONSC 2686

Background  The parties met in 2013 through mutual family and friends. Around the same time, the husband purchased a home in his sole name. Shortly after the purchase, the wife ... Read more

July 11, 2026 · 8 min read

Feldstein Family Law Group, P.C.

The Law Is Complex.
The First Step Isn't.

Free, confidential consultation with an experienced Ontario family law lawyer. One call can change everything.

Markham · Oakville · Mississauga · Vaughan

Call (905) 415-1636

Responses within one business day — often the same day.

Our Offices

Serving Families Across Ontario & the Greater Toronto Area

Four Feldstein Family Law Group offices across the GTA — close to where our clients live, work, and raise their families.

Markham

20 Crown Steel Dr Suite 8
Markham, ON L3R 9X9, Canada

Map & Directions

Mississauga

3464 Semenyk Ct Suite 213
Mississauga, ON L5C 4P8, Canada

Map & Directions

Vaughan

3865 Major MacKenzie Dr W Suite 107
Vaughan, ON L4H 4P4, Canada

Map & Directions

Oakville

209 Speers Rd Suite 5
Oakville, ON L6K 0H5, Canada

Map & Directions

Communities We Serve

Feldstein Family Law Group represents clients across the Greater Toronto Area — including Toronto, Markham, Oakville, Mississauga, Vaughan, Richmond Hill, Thornhill, Unionville, Stouffville, Aurora, Newmarket, Brampton, Etobicoke, North York, Scarborough, Burlington, Milton, Georgetown, Woodbridge, Maple, King City, and the surrounding communities of York Region, Peel Region, Halton Region, and Durham Region.