Investing in a property in Boston in order to operate it as a full-time landlord sounds like a losing proposition when occupancy is limited to 90 days/year.

Maybe that's the intent - to discourage this kind of operation.

But what will happen if owners of properties ineligible for registration - because of code violations - and owners who simply choose not to register - continue to rent their properties?

Fine for offering an ineligible (code-violating) unit for rent is $300/day, for offering an eligible but unregistered unit $100/day.

Apparently (per language in the ordinance) enforcement will occur only in response to a complaint.

Are those fines sufficient, and will the complaint/resolution process work smoothly?

We'll be watching this.