These are all excellent points.
With respect to cultural sites, I think that both sides, Azerbaijan and Armenia, would be in agreement that cultural sites need to be protected. For the past 30 years Azerbaijanis have wanted to make sure that their cultural sites in Shusha and other areas are protected, so I think protecting Armenian cultural sites would be absolutely something that would be upheld.
With respect to residents being able to return and collect their belongings, again, I think Azerbaijan would want that, because they didn't have that when that happened, as Professor Altstadt mentioned, 30 years ago when 659,000 people were pushed out. They were not able to go back in to collect their belongings, so it should be emphasized that, yes, Armenians should be allowed to go back and collect their belongings and that should be part of any type of negotiated peace agreement, certainly with documents.
The trickier question is about housing. Azerbaijanis were forced out 30 years ago. A lot of them would like to return. Now you have Armenians who would like to return. What are you going to do when you have two sets of people claiming the right to live in the same place? That's where a peace settlement is going to take a much longer time to adjudicate, but on the immediacy of documents—absolutely—and of cultural sites, those can be more quickly attested to.