But of course, having an additional spot or two reserved for the ADU would be ideal.

Passport 2. 2 Months Bank Statements showing downpayment + closing costs and reserves (typically 12 months) 3.

If you decide to take this kind of route, it's still very important to go in with a secure plan and also have at least 6 months of reserves. 

If your side could rent for $1,400 then that's what you should pay so you have money to set aside and build a reserve.

The new buyer brought a new down payment that made me whole and then some, and despite the original buyer falling behind, I continued making the underlying payment on the mortgage with reserves from his original down payment.

Lastly I dont know about your area but out this way to get development loans you need money big time reserves and EXPERIENCE going to be very hard for someone to do this with no experience those folks have to pay cash or get partners and that is very common. 

Show them the history of 30 year fixed mortgage rate & explain that the only reason rates got as low as they did is because the Federal Reserve started Quantitative Easing during the during the recession and then again during COVID.Here's the graph showing the impact of Quantitative Easing (QE) on interest rates.

Be creative on your purchase and get money back at closing to cover the reserves.

Proof of downpayment and reserves (typically 12 months for a foreign national)4.

If so, invest.Then ask yourself if you're financially fit; can afford this property to make it 1.25 DSCR and have significant reserves for vacancy, capex, lead times, etc.