To start you may have to do everything but eventually you will want to build a business not a job that relies on your physical labor.  

There were young guys in peak physical condition that would melt like chocolate in Death Valley the minute bullets start to fly.

They do where they have physical presence, for sure.

May need a physical inspection, which is ordinary course for many owners.

Needless to say none of this happened over the phone, I had to physically be there to see the code and explain this to them.

Ejectment does not just physically eject someone, it also legally ejects them.

The only way a seller would have that information is if you physically provide it.If you have only disclosed prequalification through Lender A, you would only need to provide a denial letter from that lender.

He was mentally not as sharp as he once had been (but fortunately was still functioning well mentally, his issue was almost all physical which may be even more frustrating). 

As Jonathan noted above, start physically viewing real estate.

Here are some of the reasons why: Compared to an IRA, Solo 401k contribution limits are roughly ten times higher.There is no custodial requirement for the 401k.You don't need the additional expense and administration of an LLC to have checkbook control.There is a built in-Roth component whereas IRAs are either traditional or Roth, not both.A spouse can also participate in the same Solo 401k plan.The Solo 401k has additional tax benefits over an IRA when investing into real estate using leverage.The penalties for prohibited transactions are less severe, though it's best not to utilize this benefit :)