Strain info as far as medicine goes is easy to find. Here is my site with exactly that info (no I do not have every strain but quite a few)
http://www.medicaljurisdiction.com/medical-marijuana/mmj-cures/thc-cbd-cbn.htm
Have I grown all of those? No. However, I have grown or am currently growing the major strain variations such as kush, berry, cheese, og, ww, SLH and SSH as well as other GHS new varieties, Pinapples. While I will agree each has its own needs I believe I can tell you how most strains are going to act by the phenotype during growth and the cannabinoids interaction with CB receptors as medicine.
http://www.medicaljurisdiction.com/medical-marijuana/mmj-cures/cbd-cbn-thc.php
Now I think the biggest part to remeber is that a grower may have input as to what to grow but not the final decsision. I as someone who is hiring is not letting you make that decision it would not be in my business plan.
To start this and not be a grower would be foolish. What happens if your grower dies? You better know how to step in and take over or lose a lot of money.
If your not a grower doing the interview your all ready doomed many ways.