No couches, no dressers no kitchen tables and all our floors are plain concrete.

Nice curbside dresser with a fresh coat of paint!

Have you ever tried to bring a dresser, bed frame, couch, or anything bigger than a small nightstand up a spiral staircase?

I furnish the bedrooms with basic necessities, including: Bedframe, Mattress, Nightstand, and Dresser.

Furnish the rooms with low cost furniture that looks nice (queen frame, mattress, dresser, nightstand) and charge everyone equal utilities (I recommend $50 a month). 

If so and you still have room for a bed and dresser,  that would be your best route especially since people may use it as a bedroom anyway. 

There is only enough space for a small bed and maybe a dresser and a small table between the column and window.

Dion the appraisal records doesn't mean anything in my area.In my area of Georgia from the time a property forecloses and takes back the bank is given a foreclosure deed but it will take 2 to 3 months to be updated in the tax records.So every record will show the previous owner but they don't own the property nay longer.In my state even if the property is vacant if 500 or more of property appears to be in the property you MUST go through eviction proceedings.Sometimes people being foreclosed on store their things there even if they have moved rather than paying a storage place.Then if the bank does a trashout the former tenants sue stating that the bank threw out a 5,000 dresser that was really a 100 dresser.So from the time the bank forecloses ti sometimes takes 3 months before a vacant property is listed REO even if the bank owns it.You would have more luck targeting absentee owners who have owned their properties for a long time and want to get rid of a headache.They will usually sell at a great price.

The end of this past November my family and I moved into a new apartment and less than a month after this we discovered that mold had started to grow on our ceilings and walls (ruining a dresser and clothing).

My wife had a hair dresser there, that she loved.