Deal Structure recommendation

[Jasmine Hu]

I have a friend and we decide to go together to invest in multifamily. She has knowledge of financial analyst and she can do tax for the entity. She will be much smaller investor so I will be the one, who finds deal, negotiate, financing etc. We will use property manager yet on daily basis, I will be the one.

Her share/my share could be 20/80 or her share could be smaller ( I mean bringing cash for investment ).

I don't plan to charge extra money for pulling together. 

What is a good deal structure? I will need to make final calls on all decisions. 

Any exit strategy? e.g when cash flow goes low and we need to bring extra dollar in??

Thanks a lot!