Show HN: Tenpree – A tenant prescreen tool for landlords
tenpree.com
tenpree.com
Edit: I guess the person downvoting has never experienced an asshole landlord.
https://www.portlandmaps.com/detail/permits/NWC-1ST-SW-WASHI...
Title insurance companies also collect that information, so there should be a way for a motivated buyer to get a feed for the data.
Ignoring those, you could also ask the landlord for a copy of any recent building inspections. Smaller ones might not keep very good records, though. This is probably the easiest option.