However if you ask her to go through them, you guys should come to an arrangement of some sort.

If I don't want to be the realtor myself I suppose I could make a referral arrangement with a realtor where I refer sellers with good condition properties to them and they pay me a referral fee?

I had to 1) convince my belligerent ex to sign the documents and 2) arrange a courier to pick them up from him in Scotland.

Is profit sharing arrangement going to improve your personal cash flow?  

But the forced business arrangement makes it seem like there's a decent chance they're not making that much on the part of the business that's wholesaling you the deal.

Just make sure it's a good arrangement for everyone...

Ask the buyer to arrange for the tree to be removed or trimmed. 

They probably won't give you a 30 year deal, but maybe 5-10 years, after which you arrange other financing.  

My strategy is to find "good deals" below market price of especially single homes , purchase, renovate them, rent them and hold for a while  . like (2-5) years.I need a good whole - seller, or an estimated real estate agent  to work with, contractors and someone who will take care for the arrangements and inspection of properties, and probably a property manager etc.

Also, when my name goes on title how will that affect his prior arrangement with his investor as far as their title status/agreement?