If you're self-employed, the Solo 401k will provide many benefits over a self-directed IRA: Compared to an IRA, Solo 401k contributions 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 :)

Usually, public safety wins in these cases, but the NIMBYs  are loud and furious and have the Zoning Administrators on speed dial for protests. 

It costs more in terms of accounting and administrative costs  to set up an incorporated Ontario corporation. 

An HR Dept or plan administrator should be able to advise you.The co may be planning to terminate the plan entirely since a frozen plan still has costs attached.

@Andrew Lawhorn The administrator of the estate should be allowed to make the mortgage payments on the property.

Offer to buy out the heirs (kin) legal interest in the property and start the probate Administration process yourself.

@Benedict ReyesYou will need to check with your plan administrator as the following 401k participant loan rule will need to be considered. https://www.irs.gov/retirement-plans/retirement-pl...https://www.irs.gov/retirement-plans/retirement-pl...

If they are marketing and bringing you new properties, then a percentage or a flat finder fee for each property may be appropriate.If their role is purely administrative and they are simply managing the rentals once they are received, then I would only consider a periodic bonus based on the increased workload.

@Allan CalderonGet with the county Flood Plain Administrator and permits department.

@Reid ShafenbergThere is no going back and un-doing that move.I would assume based on your description that the $5,000 distribution was reported by the 401(k) administrator as a taxable distribution to you.