Hello,I'm an investor with Upright, but I'm having a hard time to get in touch with them.  

You state that everything is equal but are concerned that not everything is equal...It's very possible to see a price spread like that even with comparable coverage but it's also vitally important you work with someone that has your back to make sure you understand your coverage before you'd have to use it.  

Is this deal worth it?

It's easier to pay the buyer and let them deal with it.

. :)  dont know the answer but if I was guess there is probably some lenders that do it with sufficient equity.

Some of the features I am looking for (most likely there is not 1 single vendor who has all this built-in, but more of a technology stack that integrates nicely)Would something like propstream, carrot, and kixie be powerful enough to get rolling out the gates and still be efficient in your eyes?

Well said Jordan, it's not as common in this market to have an ADU but there are some out there.

Who has dealt with this misfortune anywhere else?

Hello, I own a property with someone else but they have been MIA, what can I do if we have papers to sign?

Do you own this property outright?