For the part of the loan, many banks are reluctant to approve non recourse loans for small loans, that means someone in the US with SSN has to sign as guarantor, furthermore, you will not qualify for most agency loans, like Fannie, Freddie, FHA, SBA, etc.

That is real WORK, but you must know that already. we work closely with the different housing agencies that we have properties in.

Hey @Jonathan Leung - happy to have a barter convo with you about this as I'm currently interviewing different marketing agencies for my own advertising strategies. 

Make sure the deal stacks up when you compare it to a bank loan, agency, or any other loan opportunity.

If he's captive, approach a reputable independent agency.  

The Council of Economic Advisers, which is an agency in the Executive Branch, is publishing the research and data.

Because I run biz dev for an agency that could make that for you.

Dual agency is illegal here.

Was the ADU construction approved by the local agency?

Are you better served on a highly competitive offering with dual agency and dealing with the seller's broker directly?