I recently had 6 leases extended on a block which I own a part share of the freehold. I used Kirsty Perryman-Best, Partner in ODT SOLICITORS LLP. 131 South Road, Haywards Heath, West Sussex. RH16 4LY kperryman-best@odt.uk.com www.odt.uk.com
Your situation is of course more complicated but...