They won't even let me into the property citing safety.

That will create the paper trail for them.The City does need to assign addresses for fire and life safety, you should have been assigned an additional/new address in the "MIS-Addressing" review for the building before.

Huge amount of retail and food service jobs as well.Crime is bad geographically (East of University/Ave Q, north of 4th St, Tech Terrace.

Tell her that the expectation will be that it is clean, all trash/contents/food items removed, and placed in the exterior trash bins with no furniture/boxes/items left on the property (translation: don't dump your junk in the yard). 

Unpaid rents prior to your purchase, if collected belong to the prior LL.If the tenant is getting basic services, heat, water, safety etc then you wait till the lease is up to start any renovating-or you do cash for keys or pay for their lodging while you are fixing the place.

It depends on your jurisdiction but landlords should be held responsible for all safety items in a rental.

They vomit hairballs and food everywhere.

Just food for thought.

More safety and local amenity focused more than anything, which I think great renters look for as well.

A couple things here, just food for thought:- I'm house hacking/rehabbing a duplex currently, with both sides being 2bd/1ba.