Does the father's work in the Eastern Tobacco Company make the pension and inheritance (the house) unlawful, and will the father be tormented because of that?

If the civil defense department where the deceased worked was state-affiliated, then there is no harm for the heirs in benefiting from the pension provided by his workplace, whether the pension was among the deceased's entitlements or a gift from the workplace.

Similarly, if the department was affiliated with a tobacco company, and the deceased was unaware of the impermissibility of the work or followed someone who permitted it for him, then there is no harm for the heirs in benefiting from what the deceased earned or was gifted. It is stated in "Al-Adab Al-Shar'iyyah" by Ibn Muflih Al-Hanbali that it is permissible to deal with money earned through a questionable means if its prohibition is unknown, and that if the money transfers to another by inheritance or gift, it is pardoned.

And if the deceased knew of the impermissibility of the work and sinned, then his heirs may benefit from this money according to some scholars, based on the principle that something Haram due to its earning is Haram only for the earner, not for one to whom it transferred through a permissible means such as a gift or inheritance. This is the relied-upon opinion, as stated in "Manh Al-Jalil Sharh Mukhtasar Khalil."

The matter should be presented to local scholars, as they are more knowledgeable about the fire department and its operations.