Bird Dog Fee for Bringing Financers

[Tracy Maddox]

Hello all,

I'm a realtor working in Los Angeles with a goal of moving into investing.  I connected with an investor recently who has a small business flipping houses in the area.  I was able to bring him an investor who put $50k into one of his projects.  My question is what sort of bird dog fee would be appropriate for this?  I believe she will continue to invest with him over time so I would like to put a written agreement in place with agreed upon terms.  Would welcome opinions on what is reasonable and if anyone has done a deal like this before.