There are just so many considerations one has to make and getting a GC is nearly impossible right now.

And I disagree with some of the others that it’s impossible to find a property manager that won’t let you do some of the low level stuff if you want to.

it's impossible to know if you entered the numbers correctly without knowing what the numbers are. it looks like this calculator is showing you have an 8%

You are right that signing the loan doesnt create liability but all partners can be liable for the actions of other active partners and it isnt impossible to pierce the corporate veil and break the LLC.  

The Denver market can be tight, but not impossible.

We bought  4  SFR in my husband's Solo 401K two years ago.Recently we realized that it's impossible to do cash out refi as each of those is not worth much. can't meet minimum loan requirement.Can I sell house from his solo 401k to my self directed ira?

Not impossible, and I don't want to dissuade you from your dreams, but FYI that you've got a challenging path you've chosen to follow!

If you are looking to 'Cash-Out Refinance' then you will have a near-impossible time doing a cash-out refinance.

One of the real estate agents I spoke to made it seem like it was impossible to find such a deal.

From what I understand, financing on raw land at 20-25% equity is almost impossible.