You need enough sitting at the dining room table and in the living room for as many as the house sleeps.

You need an accountant and tax consultant and a real estate expert to sit down and put the houses in order of their value vs. their cash flow if you and your mom do not plan to go back to regular jobs.

So we should not send them any listing that we may interested in, and just sit back and wait for them to send us listing ? 

I know that the spreadsheet warriors may disagree, but there is some value in being very liquid sitting on a pile of cash/index funds/interest bearing investments.

Her children are elderly now but family bonds are strong and they still love gathering together so would love a gather spot of retreat like spot for them to sit and perhaps for family to go on holidays for events.

Can you afford to hold onto the property even if it sits vacant? 

No matter how simple you think your system is, somebody else coming in and sitting down and taking over Is probably not going to go as smoothly as you think.

Let's say it's $1,100 to sit vacant for one month.

My reason for NOT doing that LLC quitclaim is that in 10 years when I am sitting on a ridiculously low rate from 2015, the bank that has NEVER called a loan due in the past MAY change their minds if the current interest rates have returned to historical norms.For those reasons, some choose to purchase in their own names and protect via both leverage as well as liability limits as well as umbrella policies (and not LLCs).

CoC returns sitting close to 10% which I am happy with.