Vedard Security Alarm Technical Support

My in-laws' house burned down last night. My husband was there last night and said it looks like it might not be that bad. He also had a similar situation in the past and he says that there are several things to be taken care of after having a house fire. It included rerouting his mail, getting internet access at his temporary place, getting a phone charger, etc. What other little items or tasks do they need to remember?
They are planning to install alarm monitoring systems in the house because it is the second time their apartment is catching fire. They are not willing to shift to another house as they have got some sentimental attachment to that house.