Website should only take a day to set up  if you have your idea and logo made up.

For example, former New York State Governor Elliott Spitzer was turned in by his bank for dealing with a shell corporation that didn't seem to have any legitimate commercial purpose (it wasn't selling a product or service).

A decent lawyer who did his research would find out and said your LLC was a sham and you had pierced the corporate veil of your protection of the LLC and therefore your personal assets or any other asset in your personal name would be exposed potentially. 

what are the best lenders to refinance a property in a LLC or corporation, essential;ly a commercial mortgage 

Normally that requires a corporate or LLC resolution.

Has anyone had success renting corporate rentals the two or three months?

every creditor was happy to take cents on the dollar. and were nice about.. this kept enough money in the estate for them to go to collage.. now these are massive corporations we are talking about and they already set aside money for these eventualities.. and of course he was not a renter he owned many properties actually.  

If the multinational corporations with deep pockets cut no slack, I surely can’t afford to.

If your "Retirement account" is a Self Directed IRA, Your LLC (unless owned by your retirement account) cannot do any business with the C-corp or your retirement account.

I flip houses and have a full time corporate office job.