I'd very much recommend the following guy as he's dealt with all my financial issues for years:
Ron Wuesten
Tectron AG
Gewerbepark
5506 Mägenwil
www.tectron-finanzberatung.ch
Tel. 062 889 89 67
E-mail: r.wuesten(at)tectron-finanzberatung.ch
He'll pretty much meet you where you like especially within cantons Zurich and Aargau anyway. He doesn't watch the clock and will always charge a fair all-in fee. E.g. I've a fairly complex tax return which usually means we meet for 2-3 hours during the process and this is less than CHF 500. He speaks very good English as he spends some time in Oz each year talking part in surf lifesaving championships. Lastly, he works with many expats from all over so is well aware of what's best.