The city of Saint Paul ha a property look up web site. Put in the street number and name of any St. Paul property, and you can see the history of building permits and if the home is currently on the market there will be a truth is housing report . . or there should be because there is a city ordinance that states that single family homes listed for sale are supposed to have an inspection done and the report is supposed to be made available.
If you are looking at a home for sale that has been recently rehabbed or renovated this site is a great place to check to see who did the work and if a permit was pulled.
If you are a home owner planning to sell her is some more information about the truth in housing inspection. The city does not require any repairs but does require a 120 volt hard wired battery back up smoke detector.