This may help in filtering the details.  

We recommend this be evaluated as soon as possible by a qualified HVAC or chimney contractor.The furnace filter was heavily covered with dirt/debris during today's inspection and could not be removed without damaging the filter.

Who should pay for filters like water filter, fridge filter...etc, is it the tenant or the landlord?

Filter to match the number of bedrooms of the subject property3.

Presumably you don't have sediment issues otherwise you would be whole-house/building filtering. 

Some say the problem was taken care of back in 2017, but folks are still using filters provided by the gov’t for drinking water.

Compilers, like ourselves and Listsource, do a lot of data cleanup, add other data (like amount of equity), and make it easy to filter to just the records you are interested in.

So far thinking things like:- replacing air filters- testing and replacing batteries in smoke detectors and carbon monoxide alarms- carpet and floor cleaning and/or replacement - assessing for leaks and all working sinks, showers, toilets- wall repairs and painting - appliances are in working order- deep clean- change locks and battery -replace all lightbulbs inside and out- minor repairs- landscaping Anything I am missing?

One thing I know for sure is true, when you have something of value people with money come running cause the last thing rich people wanna see is the common guy hold onto a good thing.If you add zero value, meaning no cash, no pipeline, no teams set-up, no expertise through experience, no lender relationships - nothing then I don't care what book you read on raising capital.It's pretty simple, if you do not have money to invest yourself then get yourself educated in the process, build lender connections, start building pipelines into markets, learn skip tracing and sign up for one of the platforms that offer it (they are not free) but you'll get to search databases upon databases using countless filters for properties anywhere in the US - these are properties that are not for sale and you can directly contact the owner and develop wholesale leads. 

We have a search filter to show those properties.