In an ideal world the investor, a partner, an interior designer, or for larger investors maybe a project manager would be able to collaborate with the contractor(s) on these things.

I would find an equity partner instead and you could potentially do a deal with no money down as long as you are providing most of the sweat equity and you can demonstrate you have the necessary "experience".

As a Real Estate Professional, you can offset active and passive income, but your partner may only offset passive income unless he qualifies as a Real Estate Professional.

We don't allow any "deal-making" in the forums, which includes advertising your services or properties, looking for partners, etc.

I have been offered a proposal to partner with the broker on a house what percentage do I ask for if I am providing all the labor and he is the money?

However LP's entity  both in Canada and the USA treated the same as flow thru's entities and that may be what he would want to create an LP to partner instead of a LLC.

or partner with a buyer for a flip? 

He genuinely listens and wants to partner. 

The ideal home price for you will depend on: 1) downpayment size 2) risk appetite, 3) preference for more cash flow or appreciation.Given our price points, our investors need to have 35-45K to start, on average.The typical cash-on-cash return on our properties net of loan payments, insurance, taxes, and property management fees is 6-8%.Ultimately, you can obtain financing from any lender, although we have partner lenders that can provide very competitive rates.

My partner and I are planning to begin on making offers starting Summer 2025.