The answer question 1, although they likely won't exercise it, they could technically trigger the due on sale clause and force a payoff if you transfer and question 2, Yes...you will have credit pulls regardless of the loan direction with few exceptions.

I'm glad I decided not to pull the trigger on one of them when I found out they were just business credit cards and not a true line of credit.

After months of research hours of talking, planning, scheming forming the LLC pulling our hair out etc...

It's part of what got us to pull the trigger on buying our first rental property and furnishing in a way that would work specifically for families that were in our situation.  

Then, once you figure out a plan with your lender, it's up to you to convince your basketball team of a family to follow your hair-brained idea.

The depreciable basis would generally include the purchase price you paid for the property.The change in ownership might trigger certain tax consequences or impact the property's eligibility for certain tax breaks.

Would this move trigger a change in taxable amount?

I live nestled in a high tech area with friends who work in data security and its a common question/concern so it doesn't trigger undue alarm.Good argument for a bonded/insured PM in providing a layer of protection for both tenant and landlord

We also didn't know if a "due-on-sale" clause could be triggered. 

Don't pull the trigger until you have all the information that you need.