Tenant burned down my rental

[Christina Martinez]

On January 15th my tenant with a (double lung transplant) decided to smoke in bed leading to burning my entire 4 unit building making it uninhabitable. I have insurance and have secured a public adjuster. the home still has a mortgage as I just have owned the property a little over a year (1year 4 months).

The question is what do most people do when the insurance check comes, rebuild? hire a company to do the reconstruction? I have so many people coming at me from different directions. 

Also the neighbors house was affected but he did not have insurance- the public adjuster is saying this is his issue. Just want to do the right thing as my building caused his damage. Should i offer something to repair his property?

Has anyone done the reconstruction themselves and secured their own contractors and what was your experience?