Profit Splitting Question

hi i recently became a partner in a llc with 13 other guys. we all put up 1000.00 initially and 50 dollars per month. i went out and found a a house to buy as a way to raise money for the llc. the house was purchased for 5000.00 the question i have is, is that only 2 members have done all the work as it pertains to rehabbing the property. in some cases invested money in the rehab of the property. some members haven't paid dues since the beginning of the organization and haven't attended meetings as well. how do you suggest we split the profit when we sell it . thanks