Not sure what you mean by being the manager. Do you mean property manager or just GM? If you are looking for a percentage for doing Property Management such as finding tenants, repair and maintenance calls, and handling tenant issues then the going rate is more 8-10% of gross rent not 1%. If you are talking about management as a GP/Sponsor then I always look at my return and my investor's return to make sure it is attractive for both sides.
First you should get consideration as part for putting the deal together (Acquisition Fee): finding the deal, making offer, EMD, creating the structure of the LLC/LP, finding financing, finding property management, ... If you are getting financing and you are the guarantor on the loan then you deserve some additional consideration.
Then determine the value of General management such as: paying certain bills, communication with property manager, accounting, working with CPA on tax reporting.
Then calculate the final returns for yourself and your investors. The returns were never high enough for us to split cashflow on residential properties.