Projected returns based on entry cap may be high but actually making those returns is very tough.

The profit should be split based upon whatever agreement the two of you come up with.It would be unfair for you to put in the majority of sweat equity as well as the training involved to have a 50% profit split.

Based on the above projections I receive, I then "run the numbers" to see where I project to end up each month. 

payment based on performance?

You'll likely want to start with reviewing the requirements under Prop 19 for retention of the base assessed value when adding a child to title, and also look up the rules for a basis step-up at death. 

Here's a case study that would be dismissed based on your criterion:-Asset: Mix Use 11 Unit Building-Contract Price: $1.73M-Existing Rent Roll $15,800*Currently 1 vacant commercial space market rent $5,500 & 9 apartments all leased below market value (60 day termination provisions for each residential lease). -$650,000 Renovation Budget-Stabilized Rent Roll $25,400-"As Complete and Stabilized Value": $3.45MThat's a recent MLS deal in a B+ Philadelphia location with a credit tenant that's been there for 20 years in the occupied commercial space.

If you are going to do this type of business make sure it is in an area you can visit or make yourself familiar with, you have someone that is representing YOU at the table like your Attorrney, and you don't make decisions based on "we need to wrap this up". 

@Katie BustosWhen you buy a home with a rental unit, like a garage apartment, how you're taxed can change based on how you use the property and if you rent to family or others.

They are just far to speculative and all over the place with values for me to want to base a contract/option off of it.  

Often it is based on how well you pay back history.