It provides a line item detail for each payment application to principal/interest plus you can change the compounding frequency.  

Neil,See this article:https://bettersoundproofing.com/soundproofing-existing-walls...Item 2 would be a good, inexpensive place to start and see if that helps (enough?).

Recently, bought a house in Auction that have everything still there, clothes, furniture, shoes, photos on wall and dressers, food in kitchen, vacuums, and all personal items.

Are you sure this doesn't include CapEx items--new roof, furnace, etc.?

There are not many income/expense items on most deals.  

4) Do GC's clean up the items to throw away when done?

The stuff I get from Lowes are building supplies, paint, and "regular items"For cosmetic supplies e.g. tile, backsplash, countertops etc. 

Meanwhile, the house or rental is up in value (maybe even 50-100K).... the rental maybe even paying you monthly...You just got the basic lesson in appreciating assets.... buy them (the ones that put money in your pocket) not the ones that take money out every month.The little place we sold in 2004 there in Stockon had tripled since the early 90's (granted it was the height of the bubble) but even modest appreciation will get you there...Stay away from the quickly depreciating items (like nice cars) if you can early on in life.

They want to evaluate the property for asbestos, lead, mercury and many other noxious items. 

Another item to keep in mind is your buyers.