Determining wholesaler assignment fee

[Nicole Williams]

I really need your help BP, I am fairly new at wholesaling properties even though I quite a few under my belt. Recently another wholesaler told me I was selling myself short on assignment fees. He (the other wholesaler) said you can assignment however much you want. Just for reference, he has wholesaled over 80 properties. I use the formulas of 10-15% of the contract price or a standard 5k assignment fee. I feel assignment 10k on a 20k contract is just greedy in that case I would use the 10-15% route. Keep in mind I'm trying to build a successful real estate investing career, not just grab some quick cash. I feel like at the end of the contract when people are feeling the 'Did I just get robbed" feeling, they less likely to refer me to someone else or come back and have me find another property for them but if I give them a fair deal, then referrals and repeat business will come naturally. On the same note, I don't want to sell myself short.

So my question is how are the more seasoned wholesalers determining their assignment fees?