The business provides 100% financing to flippers with no out-of-pocket cost to them, and offers a 9% preferred returns to our investors with waterfall participation.

I've had the most success with offering a preferred return followed by a waterfall after the pref is met.

Be calm , apologize for interrupting what they were doing. and ask if there would be a more opportune time for you to talk. 

I had to calm myself down when I first started looking at homes recently.

@Mike R.Stay calm and fight back with kindness and be a gentleman. 

Get rid of them at the first opportunity, which probably means calmly  waiting at least six months.

I have heard that you can roll a hamburger patty around a children's aspirin tablet to calm a small dog down.

first, you are too paranoid. you need to calm down and dont think everyone's out to get you.second, you already know the answer - dont use a buyers agent. even if it's your wife.third, read the second point again.

I would ask her to clarify the statement in a calm manner with a smile.

To calm your fear it would be good to ask what LVF they intend to install and then do some research on it to see how it holds up.