The worst is when you have say a room door colliding with the closet door or a closet not usable because the door can't open without banging into furniture. 

It sounds very profitable and the market sounds very good for mobile homes in the area he is concentrating on,Flipping furniture?  

Those appraisers love to kill sales.Here's some sound advice that will prevent you (and anyone else reading this) from buying a new car/furniture/vacation with your pretend profits before close of escrow; The deal ain't done until the check clears the bank.

It has furnitures because I used to have a close friend live there.

But if you still want an increase in rent, throw in some furniture and you can definitely increase the rent, only if there is any demand of furnished units.  

Overgrown yards, cars and tires in yards, backyards with furniture and trash. 

Also look at things that may be detractors, like the neighborhood, or awkward layout, or tight hallways that will make moving furniture difficult, etc.

There was damage like scratches, scrapes and slight water damage to wood furniture which marred the surfaces.

Also buy your appliances and furniture ahead of time when you find a bargain, even though you don't have an STR to put them in.

The tenant has vacated the property before the sheriff arrived but he left behind his furniture including a car in the garage. what am I responsible to do with it.