How to improve and lease a worn down office building

[Jeff Glinski]

I've purchased a 4 building office park that has had virtually no maintenance over the last few years of ownership.  It still has about 30% occupancy but I need to increase that fast.  To those with experience in this realm, please help me answer the following questions:

1.  What improvements are most important to new tenants?  Which project should I tackle first (structural like roof, mechanical, cosmetic exterior, cosmetic interior, interior maintenance, etc. .   There is only a certain amount of improvement money but everything has been left in place for years, and I need to get people in quickly to increase rents to further fuel these improvements)

2.  What are the best strategies you have used to find new tenants for Class C or B office buildings?