I have noticed, as have many others the condition of foreclosed homes as far as curb appeal and creating in some cases a public nuisance or even a safety hazard
Some of these conditions including:
Brown Grass and Dead Trees: due to lack of water since this was shut off when bills stopped being paid.
Untreated Pools: Filled with Algae, mosquitoes and trash. Broken gates to pools are also a danger to children.
Missing lights: Not only are they dark because of power being shut off, but fixtures are often taken by the previous owners.
Broken Gates & Locks: Many properties have the locks not functioning properly, inviting squatters and thieves.
Boarded up windows: Certainly not appealing for potential buyers or for neighbors who still have to live in the area.
I have heard talk of legislation that would require bank-owned properties to be maintained at least to some degree by the lender holding the note. I know many agents won't (Or don't even have time) to take a broom to the listing to at least make it presentable for potential buyers.
Here is an example of a pool at a listing I previewed recently:

Who do you think should be responsible for maintenance of the property when it is put back on the market and why?