This one is pretty simple. Pick a (good) lawyer and stick with them. Switching lawyers generates huge overhead on both sides and you don’t have the time or the money for that.
Corollary: You don’t have to pick the same law firm for all your legal needs. You will probably need to cover separate disciplines (corporate, trademarks and patents, and most likely also IT law) and I’d much rather work with specialist boutique firms for each discipline.
olivergajek 