But I did not ask if HELOCs would require seasoning, I have cash in my account that I got from selling a car and pulling from stocks at least the stocks withdraw has a history.My partner is worried about protection of his assets so we are looking to just have myself on the loan and us workout payments and dividing cash flow, we will eventually transfer the title to an LLC with both our names being split 50/50 in the company.

I believe in the Millionaire Real Estate Investor the book said of all the millionaire real estate investors that were interviewed the overwhelming majority preferred to keep at least 20% - 30% of equity in each deal to protect against downturns as opposed of being leveraged to the hilt.

They can craft a loan package with the terms and conditions and ensure your money is protected through collateral.

., monthly income at 3x rent) or just market the units to the public and rent out to whomever can afford it best?

It depends on what else you have and are trying to protect. 

Hold for awhile and split the profits or have a public auction almost immediately after you control it.These are just a few ideas that should stimulate your creative juices.  

If buying a 50k house needing 25k in rehab ( consider there is an automatic 10% to 20% added as a contingency reserve to base budget to protect you from expensive surprises once you start rehab).

You want to make sure you’re not inadvertently targeting a protected class or opening yourself up to claims of doing so. 

Everything is digitized here and made public. 

There's a lot that can go wrong throughout a transaction and a good agent will do everything they can to not only negotiate for you, but limit your risk and keep you protected.