Nested, the London ‘proptech’ startup that guarantees to sell your house within 90 days or offer you a cash advance instead, has raised a further £8 million in funding. Meanwhile — and this bit is crucial — if Nested does achieve a higher sale price than the one it guaranteed/offered, either before or after the 90 day window, it will split the difference, up to 70/30 in favour of the property owner. This, in theory, keeps the interests of both parties aligned.