I plan on moving into a duplex and renting the other side out. When owning a duplex is there anything you can do to help cancel sound between the two units? 

@Kevin LefeuvreAirbnb will refund fully for certain things, and illness with proof of a doctors visit is one of them.

If interested they will ask you to provide proof of answers.

As we are not in town at the moment (my dad is sick in Canada), we wasn't able to further collect evidence to proof anything, and have to wait for our contractor to go back to the house to collect evidences.    

However, I don’t have any hard proof it was him.

If you can't provide proof of how you are going to pay for a property you are offering to purchase, why do you expect a professional to work with you, potentially for months on end?

Check with them and see what they say.No one has ever asked me for proof of ownership when I have the police or code enforcement at a property. 

They don't happen everyday, but proof that staying active in the market will payoff.  

There are some crossing Ts and DOTTING i's that will make your offer stand out, but just know your ARV and repair vosts, then submit your best offer with all the addendums and a preapproval or proof of funds .. and you should be fine.

@Jack Bobeck I agree I will go ahead and draft up a letter stating requirements that I have for environmental protection stuff and send it to them certified mail with a receipt so I can track it..and have proof of my leasing policies