Building an RV Park from scratch under 50k?

The investor is a fool if he has not looked into what is needed for this venture and simply handed over the cash. They are not free to do as they wish with their land, the government has its hand in everything and they want to collect their pound of flesh (taxes) off of any development of anything let alone the regulations that must be complied with. If they wish to remain willfully ignorant of what is needed to do this legally on the up and up then maybe you just can't save them from themselves. How far are you willing to go to save them from themselves? Sic the county on them from the get go? shut them down before they get too far along? Sometimes you just have to step aside and let things play out. Good luck.