Separate LLC per Property: Maximizes liability protection but adds complexity and costs with individual tax filings.3.

My best advice would be to read through the contract carefully (builders usually have their own individual contract that's written for them and is leaning heavily in their favor).

and connecting with local REI individuals and attending meetups to learn from experienced investors. 

You would need substantially more money saved to do well on a flip I think.

My contractor has one credit card for all of my individually owned buildings (jointly not multiple cards) and one credit card for the building I own in a partnership.

Break down your rehab into individual jobs, for example get a electrician for electrical work, a plumber to repipe the house, a dry wall guy to close out the walls, etc.

Quote from @Austin Schubert: Quote from @Chris Seveney: Quote from @Austin Schubert: Would anyone have a sample template of a proposal that you've used in the past that goes over how your structure a deal with a private money individual? 

Your contributions have to be recurring and substantial.

Unless you live in area that has many ADUs already built that have been sold with the home or as individual parcels.

@Jordyn Gegg - I have a PM company that oversees all of my individual LLCs.