I'd love it to be faster, but (when I bought in the UK) a lot of the things my solicitor checked were things that I'd definitely want to know before handing over money:

Whether the seller actually owns the property or lease, if there are other people who would have a valid claim on the land/building (or historical covenants that would prevent the construction of the building there etc). For leasehold, verify how long is remaining and so on.

Environmental information (whether the property is built on land that regularly floods, whether the site has a history of subsidence that could cause a significant risk to the building etc).

Also, if you're buying with a mortgage, the mortgage company are going to want to have a look at the property to know that they're going to get their money back if you default on the mortgage and they have to sell it themselves.

Have a look over this: https://passport.mattereum.com/West.London.Lets.01/#01_Ident... I think you'll find all that information is there, with a very strong legal framework around it.