He and his wife hold it in a revocable trust with plans for the asset to be distributed to his adult children.  

They told me that the contract auto renewal by itself without sending me any any notification or email consent.

Or do I need further consent from them?

I'd like to add this:Placing the title into an inter vivos revocable trust will NOT affect the mortgage. 

There are irrevocable and revocable "living" trusts.

I have never done a land trustWe have a living revocable trust that we set upHonestly I should have done it 15 years ago but did it like 6 years ago.I do not see the need for a land trust unless you are a politician, actor or athlete (someone who is famous).I have done business with multiple billionaires (not bragging but trying to make my point) including several that owned professional sports teams - and even they did not use land trusts…

You guys just increased it without our knowledge or acknowledgement.We are going to call the credit card company and charge back for unauthorized charge on our credit card without our consents. 

If not, you could take title as an individual and later transfer to an LLC (you might trigger some due on sale and/or transfer tax, so get legal representation on that).If LLC is not possible, I've used Revocable Living Trusts many times. 

Borrower shall occupy, establish, and use the Property as Borrower’s principal residence within 60 days after the execution of this Security Instrument and shall continue to occupy the Property as Borrower’s principal residence for at least one year after the date of occupancy, unless Lender otherwise agrees in writing, which consent shall not be unreasonably withheld, or unless extenuating circumstances exist which are beyond Borrower’s control.So you have one instrument saying it is Primary and the other saying it is Investment.

I have printed a revocable trust form from the internet and will do  it myself.