Deceased's estate - what happens if Administrators don't want to act?

[Iliketulips]

What happens if Administrators/beneficiaries do not want to act in an estate due to severe complications? One is 86 and wouldn't want to get her head around administration/organising funeral, the other has early signs of dementia and doesn't like person concerned (hasn't passed away yet but I think we all need to be aware of how this will be dealt with). Then their children do not want to act/inherit due to similar complications and have never met person concerned, then the child of one of them couldn't deal with it without the help of their parent?

The 86 year old won't cope with the worry of even renouncing. Estate will be very long winded/complicated and who knows what if anything will be left.

Can everyone just refuse to act/not engage. Who legally has to pay for funeral/legal fees for estate management if nothing left?

If there is a will and the person is still alive they could appoint a professional executor by changing their will. Your use of administrator leads me to think you mean there is no will and therefore once deceased likely to apply for letters of administration. Normally the next of kin if no will applies for letter of admin and organises the funeral. If small estate probate may not be needed. Less than 5k etc.

Some useful info here..https://www.qualitysolicitors.com/wills-and-probate/estate-administration/faq/who-is-responsible-for-arranging-and-paying-for-a-funeral

We know deceased hasn't made a Will.

There is land, but damaged/dangerous property, neighbour put foot down over sale for development of two houses on land and has also has a Court case against owner (the cousin who hasn't made a Will) for damage to caused to his property by damaged property and overgrown trees. We know its been going on about four years and has never been insured sono support there.