But it’s been a great business for us with minimal risk, a good return, and no need to please investors or manage employees!!!

I would equate it to managing yourself when you are not set up to manage properties.There is scalability in this...Now to play the Devils advocate if you get autopayments set-up you can always figure out how much interest was paid each year and what your payoff is so just decide how competent you are in that and be honest with yourself, there is nothing wrong in outsourcing parts of your business.

Understand that you are no longer in traditional real estate/landlord business that you are in hospitality business weather you like it or noe even if someone else is managing the property.

Most real estate agents don't understand the investor side of the business.

I won't bore you with the details of the restoration business, but I just wanted to jump in here and tell you that Xactimate is probably not what you're looking for.I do flips and rentals on the side, and I'm looking for a simple software to track those too.

Tools like knife etc if have a business use you can write off.

It is too complex for them.So, the IRA that owns the LLC is not also a brokerage IRA. got it, thankyou, hopefully His trust/bank offers some better cash management options as we all know they are getting at least 5.33% from parking his money at FEDs reverse repo facility, or if they have any brains buying 4-8-13 week Tbills for 5.5%, then again they probably are and won't offer him any options so they can keep all that profit, which means there's a business opportunity for a trust co/bank that will 

Counter is that it's arguably not just a house, it's a running business.

The costs for the LLC business will be paid with the primary business card.  

Let's do some business together.