The short answer: A property in Ukraine can be managed on your behalf while you live in Canada. A local representative acts under a power of attorney for the defined scope: dealing with tenants, utilities, the building administration, tax payments, and contractors. The main caveat: the power of attorney should match the tasks you actually delegate, because banks and some institutions read the scope narrowly.
This situation usually means building a small operating system around the property: someone who holds the keys, someone who can sign for you, a routine for taxes and utility bills, and a way for money and documents to move between the two countries. Set up once, it runs quietly; set up reactively, every small issue becomes a cross-border project.