Now based in Portland, OR I plan initially to assume a bird dog role, passing along seller details to wholesalers in exchange for a split in any profits achieved.  

Asking around to other wholesalers in your market to bring a buyer to the table for a split of the wholesalers yield.

Or at least split them?

This way they get paid first, then you, then you split whats left over...Just some ideas.  

I am excited that I just completed my first of hopefully many owner finance deals, I paid no money down it needs about $5k including a new furnace we split the furnace repair.Terms7.5%Payment $240 per month (20 year note) plus taxes of $100 and Insurance of $50 per month.It is out in the sticks a little bit but I should be able to rent for $700-$800 with very little out of pocket..

That is not to say that I would not split profits. 

Also closing cost are usually split as to local custom  just ask your AGENT  what is local custom.

@Marc Dufour Anytime a neighbor wants to split the cost of a fence 50/50 that is a bonus.  

The title search and title policy are usually split, buy pays one the seller pays for one.

Plus I've realized that with my time and attention split how many different ways, my quality and attention to detail is lacking in all areas of my life.