What COC return are wrap investors looking for?

I'm getting some sellers interested in payment terms from my realtor partners. After the down payment, agent commission and (all) other entry costs, I'm seeing cash on cash returns of around 20-40% against a wrap exit, to each partner on a 50/50 split.

Is this in the ballpark of what funding partners on a wrap would expect? Or do I need to be north of 50% to justify their risk?