Also, the model unit had built-in air conditioner but his unit had big stupid air conditioner. so everything was different than the model unit.and today he said that there was a homeless sleeping at the hallway on his floorso they refused to show him the unit that he already made contract and no one is living, but the unit condition was terrible unlike model unit. is this legal?

On the air BNB furniture can be separated out and expensed using bonus depreciation. 

New Law Allows Three Housing Units on Every Parcel in CaliforniaStatement from California YIMBY President & CEO Brian HanlonSacramento, CA – Today California YIMBY released the following statement celebrating the historic passage of a package of bills that could triple housing supply in the state:“The passage of AB 68, along with SB 13 and AB 881, fundamentally shifts the landscape for building new homes in our state,” said Brian Hanlon, co-founder and President of California YIMBY.

We want to air bnb it.

Also, Chicago has quite a few Air bnb properties at this point and unless you are in a fantastic location I don't think it is worth it.

Will refinance in 2-3 years. and use as student housing, or air bnb.

Once a property is in REAP, the city Housing Department is in charge ( HCIDLA as they are known before their website switches back to Housing Department, as they were known since the passage of the Rent Control Ordinance in 1978 creating a large bureaucracy charging fees to the landlord to feed themselves and at the same time making life miserable to the mom and pop landlord who does not have the resources to comply with their draconian rules).  

I target a higher end guest and try to follow the five senses mantra as soon as folks walk in the door: reed air fresheners, warm lighting, relaxing music, etc.

He prefers that we list it on Air B n B to avoid a potential headache. 

I've been cleaning the floors with enzymatic cleaner and trying to air the house out but despite some improvement the odor is still too objectionable to move in.I didn't know until after purchasing and attempting to clean, that pet odors tend to be persistent and difficult and expensive to eliminate as contamination is absorb into the floors and walls and even the furnace and duct work.