They can walk in to a local branch with cash or personal check, or pay via ACH bank transfer online. 

I'm thinking I may need to seal/coat the exterior walls - one person I talked to thinks moisture may be coming in from the walls and getting sucked into the soft bricks.

I’m aware of what material participation is, i just wanted to see if anyone has personally done this and if there were any issues or pitfalls with doing it.buy a million dollar cabin, cost segregation, 200- 250k tax deduction against w-2 income and rinse and repeat?

I am a board member with CFRI, the local chapter for the national REIA and I personally know about a dozen private lenders that are members.

I personally don't believe that the property will continue to appreciate or see the rent growth that it has seen over the past few years.Based off of the surface level information, what options would you go with and why?

We should try and stay away from personal anedotes whem comparing investment vehicles.

I personally use my HELOC for down payments on homes and then quickly pay if off, this allows me to always have a liquid down payment source on hand.

I've done this with my properties because I'm well known in my small town and don't want people to know what I own.LEGAL PROTECTION: By placing your assets in an LLC, you are legally separating them from your personal assets.

I am familiar with the meet ups happening in the area (and eager to join those) but am looking for something more personal, formal and consistent (bi-weekly?). 

It is pretty straight forward - I would provide the sourcing, the loan vehicle (it would be my primary mortgage loan), and the property management while my sibling would bring the downpayment.