Answer:
limited partnership real estate investment syndicate
Step-by-step explanation:
Since in the given situation it is mentioned that stan wants to invest in the real property instead be a sole owner. So he pool his resources in order to create the office building with the other people also at the same time he is not interested to take part in day to day responsibilities
So here it is a limited partnership business venture as he is engaging with other people not alone to create the office buidling