Do I focus on financing or marketing first?

[Alex Velasco]

Brand new aspiring real estate investor here, hoping for some professional insight on a beginner question. After reading books and listening to podcasts, I keep running into the same dilemma. Do I get my financing in order before starting a mailer marketing campaign or do I send out mailings first and figure out financing after the marketing (hopefully) generates leads? More nuanced, how detailed of a plan for financing do I need before I start actively hunting for deals? 

Thanks in advance!