We are looking into doing this too.
I would only do this myself, if we had set this whole org up on paper with a proper LLC and docs describing how the acticity will work. Make a business plan for the venture showing financial projections for this plan. You can do this in less than 6 pages. I usually make a flow chart since this is how these things go. The background info on all LLC members should contain financial docs for you - main contact, and all members will be there as a subset of the financial docs. Your plan should show exit strategy, pay out strategy - show each step of your thinking.
After all, it sounds like you will be the front man and take the biggest responsability for the venture. So CYA.
The docs protect your partners as well. If they are not asking for this don't work with them. It would be a sign they are "not ready".
With your business plan, you would be setting up with the bank a pre plan for funds you will need to be sure will be there when you need it. And then when your LLC goes to apply for the loan (one on each prop as you find them)
My bank let me know their under writers wanted to see cash in the account that is just sitting there as a cushion. So your bank may come back to you with requests for docs, feedback etc.
Make sure your attourney looks over your plan and docs before you bring them to the bank. We usually let the CPA know before we do a purchase or a sale or refi too. Sometimes he has advice about timing or records he will need to save us on taxes.
If you can make it work on paper, you will be more certain of success when you do the real deals. You will know the parameters you must work within.
Good luck.
Diane