So, you may want to consult a real estate attorney to make sure your arrangement works for you.

Refer the party to a cleaning company so that they can arrange service and payment.

I am thinking this arrangement may not work out.  

Hello, I was wondering if anyone has experience with getting a cosigner (or any other alternative arrangement) for an investment property.I currently own two properties, a condo in Denver and a house in Austin.

(I didn't have to look for off market deals, do weird business arrangements, or do anything unusual at all to get these properties, even in a tough buyer's market...shocker, I know!).

Sub-to in my opinion is a very strong option, perhaps he could structure it in a way where they do subject to for a certain time period after which the buyer would need to arrange their own financing.

Putting something together after the offer is really no different than a buyer trying to arrange a bank mortgage. ie, if you don't have the funds "up front", you won't be considered to be a cash buyer.

Thanks for arranging this. 

What I am really trying to figure out is, what good terms of this arrangement could be so that they are most secure.

Would also love to hear alternative arrangements that have worked well for you.