Yes the option fee would be applied to the sale price at the time of sale. 

Those taxes are usually collected from the guest and the paid to the appropriate authorities...a "pass-through" cost, like a cleaning fee.

Right now capital is at a minimum and I’m improving credit so while I start saving money and networking with other investors, I’ve decided that whole-selling is probably my best bet to get a little extra cash in the bank account before I go buy a hold property.Anyway, I’m curious on a few things:What’s an average wholesale fee in California?

Another thing to consider besides material costs is permit fees depending on the scope of the work.

If you know the right contact and the way they work, the price could be very competitive even includes the shipping fees. 

Tenant pays the application fee so you don't lose any money.

As others posted, wholesaling works best with cash.Maybe just go a straight referral fee?

They charge $37 per month for membership fee.

Any recommendations will be greatly appreciated and would even pay a small fee for the information. 

Is it legal to pay someone not licensed a fee for a referral aka bird dogging?