You get paid a pre-determined GC/Handler fee ... not your typical 30%. :-)2.

Perhaps I am just lucky, but I have a team member I can trust and more often than not, my pre-determined exit price is the same as what I am given (which gives me confidence that we both did our numbers accurately).

SEC has predetermined compliance is considered a private placement exempt from SEC registration.

If, at the end of the option period you choose to do so you can purchase the property at a predetermined price OR lose the downpayment and supplemental payments. 

If the information matches my predetermined criteria I then give the seller a call for additional information and to make an initial offer.

I've read before about L/Os that set up a down payment, a monthly rent, a monthly addition to the down payment (forced savings) and then purchase for a predetermined price.

I paid the landlord/vendor a fee {the option price} for the right to purchase the property at a predetermined price {the strike price} within a given timeframe (2 years in that case).

There is no predetermined value to reach.

They only come in predetermined widths, so define what the base dimensions will be for the "tub" and then build off that. 

Determining rents is pretty simple...and knowing whether the rents can be forced higher through upgrading the units is pretty straightforward...as is determining whether this building (an 8-unit) will ever appreciate more than a pre-determined price.