▁in ▁March ▁ 2 0 1 6 ▁on ▁the ▁sale ▁of ▁the ▁club . ▁ ▁He ▁joined ▁the ▁global ▁valu ation ▁and ▁corpor ate ▁fin ance ▁advis ors ▁D uff ▁& ▁Ph el ps ▁as ▁a ▁Man aging ▁Director ▁in ▁January ▁ 2 0 1 7 , ▁having ▁previously ▁led ▁the ▁professional ▁sports ▁group ▁at ▁global ▁advis ory ▁firm ▁B DO ▁International . ▁ ▁In ▁March ▁ 2 0 1 7 ▁Port sm outh ▁confirmed ▁that ▁they ▁had ▁retained ▁the ▁services ▁of ▁Mr . ▁Bir ch ▁during ▁a ▁period ▁of ▁negoti ations ▁with ▁Mike ▁E is ner ▁and ▁his ▁invest ment ▁vehicle ▁T orn ante ▁regarding ▁a ▁take over ▁of ▁the ▁club . ▁ ▁He ▁became ▁chairman ▁of ▁Sw anse a ▁City ▁on ▁ 1 8 ▁March ▁ 2 0 1 9 . ▁ ▁References ▁ ▁External ▁links ▁Tre vor ▁Bir ch ▁at ▁D uff ▁& ▁Ph el ps ▁ ▁Category : L iving ▁people ▁Category : 1 9 5 8 ▁birth s ▁Category : B rit ish ▁sports ▁execut ives ▁and ▁administr ators ▁Category : Ch else a ▁F . C . ▁non - play ing ▁staff ▁Category : Ch ester ▁City ▁F . C . ▁players ▁Category : English ▁football ers ▁Category : E ver ton ▁F . C . ▁direct ors ▁and ▁chair men ▁Category : L iver pool ▁F . C . ▁players ▁Category : Sh rew s bury ▁Town ▁F . C . ▁players ▁Category : Mar ine ▁F . C . ▁players ▁Category : R unc orn