Hi,
If a UK solicitor is providing legal services to an overseas business and the supply isn't directly related to land then this would normally be Outside The Scope of UK VAT.
Please see below:
The place of supply rules for services
If the solicitor has engaged another business/body to provide themselves with services then this is a separate supply and would again fall under the Place Of Supply Rules as per below:
The place of supply rules for services
If the solicitor is passing on these fees to the business overseas then this would generally follow the solicitor's main supply of srvices to the overseas client.
Thank you.