We do this for a living and our reputation depends on you successfully securing a loan, on time, and as promised. 

I also completely understand the frustration of navigating through "Joker brokers" and fake lenders who promise more than they can deliver—one of the biggest challenges in the industry today.Regarding your approach to accrual-based repayment options, that’s a huge help for flippers managing tight cash flow, and it's great that you offer that flexibility.

I've spent way too much money on them and their promises over the past 20 years, and lost too much in the game. 

For a new agent to land a listing they typically over promise a seller a high price to win it and then spend money trying to find the magical buyer to purchase it.

I’m also glad BP isn’t overrun with people pushing courses that promise to take someone from newbie to syndication expert overnight."

You will want to consult with a lawyer.In regards to your last two questions here's some background on what makes a contract valid and enforceable:Offer: A promise to do or not do something within a certain time period Acceptance: A clear and direct statement that all terms and responsibilities are accepted Consideration: A legal and adequate inducement given in exchange for the promise Capacity: The parties to the contract must have the legal capacity and competency to contract Awareness: A party must be aware of the contract Legality: The contract must be legal in the jurisdiction it will be operating in***Not legal advice*** Steps I would take: -Review contract in detail to understand each counterparties responsibilities (if you are not aware)- Email a copy of the lease to each of the tenants listed on the lease and reiterate lease expectations for termination notice, rent payment etc. - If the lease was signed via Docusign (other esign may have same ability) - you can go to the envelope, go to history and view the IP addresses for each action taken.

Doesn't matter what they promise.

Just a worthless piece of paper that validates a promise (legal obligation). 

We were thoughtful about every word we wanted to send, so that we wouldn't be unfair to what they had promised to offer.

First of all, congrats on taking the leap into vacation property investing—it’s such an exciting journey, and I promise, with the right guidance, it can be incredibly rewarding!