For the Helsinki side, ask the building manager or relevant project contact what approvals, access arrangements and working restrictions apply to this particular flat and building. Do not assume that “no structural work” means no administrative delay. Put permit or approval responsibility and...
What is meant to be the main record in your setup? If leads, listings, documents and transaction updates can all overwrite one another, the integration design matters more than the individual tools. Decide which system owns the address, contact, status and valuation notes. Otherwise “enter once”...