覺得最後的選擇2，3不現實或者互相矛盾：
perimeter of the group project, lets say, it be a MFU apartment complex, with 30% minimum discount compare to market, area will be TX. at this point, we are not considering amount of money need to invest. exist strategy be, sell out or refi after 5 years, if refi, partners can choose to sell their shares or continue in partnership.
1. not interest in it at all.
2. interest in it if with guanrantee rate of return plus profit sharing.
3. interest in it if partnership offers guanrantee buy back after 5 years.
矛盾的地方在於1）沒有人能夠guanrantee rate of return plus profit sharing和guanrantee buy back after 5 years。2）partnership屬於所有投資者，繼續在partnership的投資者如何能夠預先承諾買回要退出的投資者的股份呢？這不是預先自己向自己承諾嗎？其次，作為投資者也期望回報，當然應該承受風險。假如不能承受風險就不應該投入。
