A “hybrid” probate law firm set up by a former banker and backed by Aviva is aiming to use lessons from fintech in its bid to automate and streamline the process.

Rish Sareen, founder and chief executive of alternative business structure Trustestate, said he believed fintech was “much further ahead than the legal tech world”.

He is majority owner of Trustestate, which has attracted investment from Aviva, angel investors and the Founders Factory, which helped develop the startup.

He declined to comment on whether Aviva would be sending work to the firm.

Mr Sareen worked for JP Morgan and AIG before becoming a vice-president of money management app Plum. He experienced the probate process for himself when a member of his family died.

“It felt like a very opaque process. It was hard to d

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