NC guidelines and requirements for lease to purchase

[Joshua B]

I have a family interested in doing a lease to purchase on my house. I want to create a contract that is both fair to my tenants and advantageous to myself, and also meets the legal requirements for such contracts in North Carolina.

What are some points for deciding such things as how much for the security deposit, amount put in escrow above standard rent, amount recommended for option-to-buy money down, etc etc?

Also, what are laws and regulations I should be aware of in NC for a lease to purchase?

Thanks for any guidance! :)