I would probably give the upstairs a larger portion of that number since it is likely larger. 

Maybe let him know that if he agrees in writing and you can get rid of everything now and re-rent the unit before the end of the month, you'll prorate the rent and send him a portion of his deposit back.   

@John Moore I think it will be a small portion of buyers that will buy online.

If partners are obligated to make contributions by agreeing to terms and fail to fund their portion (I am not sure what is the best course of action here…)4.

We live in the 2/1 portion of the home and rent out the 1/1 attached efficiency for $850.00 a month.

Frankly, I think the other side has an argument for asking for a portion of EM.I'd ask your lender to provide you with what regulation prevents them from having control over an appraisal timeline.

With the "BRRRR" I'm wanting to know down the line how would the refinance portion work.

For that portion of your income, two years of receipt will be needed. 

So, I tracked down the owners and asked about buying a portion of it to augment my yard.

As always, caveat emptor with foreclosure/trustee sales and make sure you’ve consulted legal advice re:title and have physically inspected what portion of the property you are legally able to inspect.