Students coming out of college are saddled by student debt now more than ever, to exacerbate the situation younger millennials are now more than ever placing a higher priority on flexibility in the work place and their living situations leaving many of them choosing to rent over seeking out home ownership; This paired with boomers looking to divest their investments into a more "hands off" approach helps create the perfect storm for young investors ready to take advantage of the multi-family climate.

I’d probably just put them on 2 standard contracts to give you flexibility unless you know the same buyer will take them both.

Portfolio lenders have more flexibility but a little higher rates usually.

Earning a commission on your deals is nice for the extra money, although some choose to waive their commission in exchange for a lower purchase price so that give you some flexibility as well. 

Question 1 - The great thing about partnerships is the flexibility of how to allocate income/loss.

For example:- The market has changed- The project has changed (surprises came up)- My financial situation has changed- My long-term goals have changed- Etc...If something changes, it's always good to be flexible and be able to change with it.  

I know with a $150 - $200 thousand increase on my mortgage I can have more flexibility to get a property to rent and have more cashflow.  

You want to look for the flexibility to not be subject to Co-Insurance requirements or minimum earned premiums and varying choices in deductibles and coverage forms.

Putting money in a 529 for college and getting tax free earnings but investing outside of a 529 to keep some flexibility in what money can be spent towards.

This seller is motivated and sounds really flexible on her price, she started at $25k but seems even more flexible when I recently spoke to her.