Direct mail can be effective, I think one of the best tactics is to use FedEx or UPS.

Changes are low that you will be reimbursed for the damages and sounds like you can't prove that they occured with their tenancy. 

Instead of just pulling the trigger and buying a single family house, I thought of trying to sound proof the walls/ceilings.

It sounds like you want to be a rental property owner/investor and not just looking to minimize your out of pocket housing expenses (getting a roommate to help cover your mortgage with a single family home).  

Thank you for the sound advice.

Never send money in advance for their fee's  NEVER. thats a huge red flag that they are just out for fees and are fake lenders.2. bad or not really good written english .. on the phone they sound like they are off shore ( which they are ).3. rates  lower than market most of the fake lenders will advertise 5% rate that does not exist.4. insisting you pay for mortgage insurance  there is NO mortgage insurance on PML HML loans does not exist.While NMLS registered and state licensed is a good way to vet a lender keep in mind only 12 states require it.

The way you're describing sounds difficult and is hard to follow.  

Sounds like a good idea.

CPA says that will be depreciated over the 27.5 years.I am trying to understand how this will effect me on a yearly basis.

I have not invested with them, but it sounds like a time-share.