Mortgage brokers often throw a carrot of a really low rate out to engage the borrower and then half way through the process drop the bomb of them with a re-trade of a rate for X,Y,Z reasons.I would find lenders that specialize in your asset class and deal size as they will generally have the most appetite for it.

The challenge here is to get them to understand the business.There are also a lot of good investor website tools available like Investors Carrot.

Eventually InvestorFlow or Carrot. 

Versions of it have been available for years, just not with this large of a carrot.

Our website is with Investor Carrot but needs to ensure I am hitting all data points of contact.

I am assuming the carrot is that you will get the property in 2035 that will be worth is market value then and in essence paid $675K for that but made nothing in the meantime. 

Its 2022, we've all seen carrot automated workflows.

@Sayo Owoseni - you should take a quick peek at Investor Carrot (I'm not a reseller - so no spiffs off the recommendation).  

I used investor carrot to create my website.

My guess would be that if tested in court, the date the transaction was initiated by the tenant would be considered the payment date, even if it takes 3 days to post to your account.To summarize my opinion on this situation - think of it as a carrot and stick choice (like trying to get a horse to do what you want), try the carrot approach first, if that doesn't work, use the stick.