How do I prove what I owned if everything burned?
With whatever you kept outside the apartment: photos, video, receipts, bank records. A phone walkthrough of every room stored in the cloud is the simplest version and takes about ten minutes. Without something, the claim becomes a negotiation from memory and memory undersells.
Why was my first claim check less than the replacement price?
Because many policies pay actual cash value first and release the rest once you have replaced the item and shown proof. It is called replacement cost holdback. It is normal, it is recoverable, and it is worth knowing before the check arrives.
How much contents cover do I actually need?
More than most people guess. Add up a bedroom, a kitchen, clothes, electronics and whatever is in the closet and the figure usually surprises. We would rather set it from a real total than from a default on a form.