Family wants to invest with me. Their money, my skills.

[Maurice Dixon]

So I have been working a BRRRR for a while now and I will be finishing it up soon. My mom sees my progress and numbers and wants in. She has offered me the capital for my next deal, which will likely be another BRRRR, because im able to do all of the rehab myself with out hiring any of it out. My question is, what would be the best way to split profits with her and when? Also in her original offer she suggested I would receive 60% and her to get 40%. Her ideal outcome she says is to be receiving supplemental income for her retirement that's coming up in the next few years. So she wants to be part of the rental side of the business, not just a private money lender for the BRRRR process. When I rent I will be doing the property managing so I would expect to receive more of the profits due to that. So essentially my mom wants to be a silent partner. Any opinions on how to structure this partnership would be helpful because I've never even contemplated partnering before.