Yes, better plan.

Scott's makes a few reasonably good products, but their 4-step or 5-step program is designed to sell stuff that not everyone needs, and definitely not everyone should use all at the same time.

Can you get Weed-b-Gon and/or Weed-b-Gon Chickweed, Clover, and Oxalis Killer? The fastest way to get rid of the weeds is to get the bottle with the hose attachment and spray it. For 3,000 square feet it should only take a few minutes.

Fall is the time to reseed. Spring is a poor time to do it because you inevitably get a weedy result. Spring is when the summer annual weeds, like crabgrass, are germinating. Fall is the best time and last month was the time for you to start in Toronto.

Do you know what kind of grass they have? If it is Kentucky bluegrass then about all you have to do is spray for weeds, mow, and water.

Nov 1 is not necessarily the best time to fertilize. It is better to watch Nature and let Her decide for you. At some point the grass will stop growing. That is the time to fertilize. It might be November 30 or some other date, but fertilizing too early in the fall can do more harm than good. By fertilizing just as the grass stops growing all the nutrients go into the roots and get them ready for an early green up in the spring. The fertilizer to use is a fast release, high N, with little to no P or K.

Watering: Deep and infrequent is the mantra for watering. This is for all turf grass all over the place. Deep means 1 inch all at one time. Put some cat food or tuna cans around the yard, and time how long it takes your sprinkler(s) to fill all the cans. Memorize that time. That will be the time you water from now on. My hose, sprinkler and water pressure takes 8 full hours to fill the cans. Your time will likely be less. I like gentle watering. As for watering frequency, that depends on the daytime air temperature. With temps in the 90s, deep water once per week. With temps in the 80s, deep water once every 2 weeks. With temps in the 70s, deep water once every 3 weeks. With temps below 70, deep water once a month. Note that you have to keep up with quickly changing temps in the spring and fall. This deep and infrequent schedule works in Phoenix and in Vermont, so it should work for you. The reason for deep and infrequent is to grow deeper, more drought resistant roots and to allow the soil to dry completely at the surface for several days before watering again. If it rains, reset your calendar to account for the rainfall.