What legal documents should I hold?

[CEvert]

We completed on a sale of a house not long ago.
We paid cash for it.
Just wondering what legal documents do I need to request from my solicitor so I have all necessary documents for future sale of this property?
My previous sale was a nightmare as I did not hold any documents and it had been more than 6 yrs since I last used the previous solicitor.

You don't get deeds these days. It's all held electronically by the Land Registry.

You can get what's called Office Copy Entries. It's basically a copy of what the Land Registry holds.