Selling leads vs taking commissions?

Hey,

So I'm seeking out some advice that I'm hoping will benefit a ton of others in the same predicament.

I want to find a partner to sell phone/email leads with but I'd rather take commissions from closed deals off the backend instead of selling leads on the front end for $30 a piece.

So as I puzzle this out:

Step 1: Qualify a reputable company to partner with
Step 2: Determine what happens if they don't close on the leads and when
Step 3: Determine commission percentage range
Step 4: Determine how to ensure commissions are being paid
Step 5: Get paid much more than $30

Would anyone have any insight on these steps? Do you think it's possible to sell leads and make a commission or is that too much?

I know some people might not enjoy depending on someone else's ability to close in order to get paid but I feel it's important to examine their sales funnel and help them achieve conversions wherever possible anyway. The whole point is everyone involved in the deal is winning and your the car to take them across the finish line.

And I know I could do a search for a similar business model but I'd rather get the input of people who are experienced and done it before then rely on a random google search.

Thus far here's what I've learned:
--Give the estimates myself, mark up your partners bid and take what's left off the top.

I say if you are well acquainted with that niche and your partner is comfortable with it then that's a seaming less way to make what you want and ensure your getting paid. That doesn't work for me though and probably not for most anyway.

--This works best with a high value per lead niche like construction.

--These guys are way open to doing additional marketing if their first impression of you is making their phone ring. Color it as supplemental leads they could be getting that could result in XXX per month without your commission fee.