Thomson Reuters names eight Keystone Law partners in its Stand-out Lawyers Guide 2026
Andrea James, Andrew Darwin & Anna McKibbin
Consultant Solicitor
England & Wales
020 3319 3700
jonathan.erdman@keystonelaw.co.uk
Jonathan is a property solicitor who deals with both commercial and residential property transactions. He often advises on the acquisition of residential blocks, industrial sites, office parks and mixed use developments for either the break-up of investment sales or residential plot sales.
Jonathan also advises commercial landlords on lettings and assists with residential lease extensions. His clients include property traders, developers and investors, and he has particular specialism in sub-sales and development sales (including Help to Buy).
Jonathan advises on commercial acquisitions, lettings, finance, and sales, including ground rents, student halls, bridging finance, 999-year lease break-ups, and acts for high-net-worth foreign investors across Central and Greater London.
Experience
Jonathan advises on mixed-use acquisitions, 999-year lease break-ups, lease regularisation, bridging finance, Section 5 Notices, and investment sales, including rapid sub-sales of residential and commercial parades within tight timeframes.
Experience
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Jonathan qualified as a solicitor in 2013. Prior to joining Keystone Law in 2019, he worked at the following firms: