Do you want cut a tree which in your private area ? Can you cut it anytime or anyway ?
If you are living in Canada Ontario. Please read the rules in Toronto about tree on private property:
Information about Permits to Injure or Destroy Trees
If you require a permit to remove or injure a protected tree, you must complete and submit an Application to Injure or Destroy Trees and the required fee and supplementary documents to the appropriate district office, as shown below. An arborist report is required for all Applications to Injure or Destroy Trees. You can find professional tree service companies, that can prepare an arborist report, by checking the Yellow Pages or similar business directories such as The Gold Book. An internet search using keyphrases such as “tree service companies Toronto” should provide listings as well.
Check Toronto Official “Trees on Private Property“