Absolutely, like buying a car - get everything done you can before you take possession (or like renting a car - make sure its not damaged when you sign on the dotted line). Type experts (and I'm not touting for business) may seem like an expense you can do without but it could work out way more expensive in the long run if you're not didligent and have a wily Lessor. I'm in the Rotary business not the Big Jet game any more and believe me we still need to be vigilant.
Good Luck with your quest.