hello, we live in a 1year old new construction townhome by ryland homes in aurora IL

we have noise problems in particular
a. gargling and choking from neighbor in morning
b. footfalls on stairs sound like drums
c. dropping toilet seat thumps
d. cabinet door thumps
e. neighbors subwoofer shakes picture frames (understandable if loud enough)

ryland has been notified since 6month and has been willing to work with us. however, on the final "1 yr" service check
there was nothign more they could do. they claim the wall is up to standards, and the noises are normal and perhaps just that of a difficult neighbor.

i have asked for stc/iic ratings information about the party wall construction to further my own research.. they told me of double sided walls, r13 batts, cinderblocks in between.. they claim it to be a good design...
they tried to use an infared camera on the walls, but we didnt have sufficent temperature partity between units..
(we didnt turn off heat, no one notified us.. all we did was open a window for 5mins...)

questions-
a. what should one look for in the infared camera? he showed us briefly a color contrast between the colder window and walls.. but how does this compare to insulation faults that may result in such noises?
b. is there someone in the city of aurora that i can call?
c. can i get an independent inspector to "test" the sound insulation of the unit, approx costs?


ryland has been willing to work with us having talked to the neighbors, and sending out an infared camera.. however it really pains us to wake up every morning in our dream home to the sound of the neighbor choking on his mouthwash.

please advise
thanks.