To Use Inheritance Shared by a Minor
As far as the share of a minor is concerned, one may use the estate of a deceased person only after getting the permission of the minor's shar‘ī guardian.

Funeral in the House Shared by a Minor Heir
There is no objection to using/going into the house of a deceased person, who has a minor heir, as much as required for performing acts generally necessary for the funeral, including its ghusl, shrouding and burial and there is no need for the permission of the minor’s guardian.

An Obligatory Will
Should the person keep other’s belongings or have in their possession some property that carries a liability, be it to the people or in the form of religious dues, of which they could not discharge their responsibility, it is obligatory for them to leave a will. Otherwise, it is not obligatory.

To Purchase a Grave
If the place where the grave will be built is lawfully owned by others, there is no harm in buying it. Should the piece of land be endowed for the purpose of burying the believers’ dead, it is not right to buy and reserve it for oneself.

To Build a Masjid in a Cemetery
There is no objection to building a masjid on the land of a derelict cemetery provided that the land of the cemetery is not: [a] an endowment, [b] private property, or [c] a facility for the public at large and building the masjid does not entail desecrating the graves or exhuming the bodies of Muslims.

To Change a Cemetery 
It is not permissible to use the cemetery, endowed for burying the dead, for an alternative purpose if it can be used for the purpose for which it was endowed.

To Burry a Corpse Bone
While digging a canal or the like in a land, if a bone belonging to a Muslim corpse is taken out,
it is obligatory to bury it again.