What kind of proof of funds do you need for auctions?

You always want some proof of who cashed the check and where it went. 

Time is critical, especially in competitive markets.Clear Offer Terms - Present a firm offer with terms that make the seller feel confident that you can close fast, with minimal contingencies or proof of funds.Due Diligence Preparation - Have your financing lined up and know your repair/rehab costs in advance so you can move quickly without second-guessing.

Inability to show proof.

We make them sign and acknowledge all the fees at lease signing Then when the tenant gives notice we send them the video link and the pictures to let them know that is how we expect to get our property back.Then after the tenant moves out we take another video and another 150-200 pictures for before and after pictures and proof should we ever go to court

no banks, no credit , no W-2, no proof of income needed. 

I have several questions - imagine being able to split up property ownership into tiny pieces or having every transaction out there for everyone to see, all secure and tamper-proof.

there are differences between ESA and Service Pets so I'm trying to understand what are the different proof the landlord will ask

My goal for this is to finish the course within the next 2 months and come up with a plan and proof of concept STR somewhere within 15 minutes from my home.

When we get farther into this process, I will absolutely ask to see all the leases and proof of payment history for the current tenants.