The letter - written by the Charity Finance Group, National Council for Voluntary Organisations and the National Association for Voluntary and Community Action - expressed concern for up to 5, 000 UK charities in "multi-employer defined benefit schemes".

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Done strategically, even for a short time, living in multi-generational homes can benefit the whole family.

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Also the Pentagon has the enthusiastic support of aerospace corporations who benefit from these multi-billion dollar government contracts.

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