We had one deal fall wash out last year (and I only started in July last year) due to deferred maintenance.  

@Yunfan Wang, I would go with Denali and lighten the walls, definitely consider applying a lime wash to the brick fireplace to modernize it.

We suspected it was from another tenant who was a mechanic and I warned them that they needed to stop washing his work clothes in the washer but we are on occurrence #4 now what should I do? 

I just got my hands dirty on one and rinse wash and repeat. 

(BP will be the new brand- 10 year lease with BP)Store was heavily dependent on game machine revenue which is 45% in state.

I have even washed them between tenants, or for a long tenancy, I just replace them.Just zip in the brackets well (hit a stud) and measure to get the right size curtain, height may be the key with not much space between the top of the sliding door and ceiling.Best of luck.

I then borrow this (10 yr old) machine a fellow investor bought & it has been unbelievable.

Buy a neutralizer, spread it around heavy, poly film it, come back in 24 hours, ozonate if there is still smell (likely for a couple days or more depending on smell and ozone capacity of machine), then you’re probably sanding and throwing down whatever stain /polyurethane you desire.

Turned it into a lean machine mate.

Once he did mention that the central heat gas line needed to be hard plumbed through the furnace housing, and the washing machine drain needed a p trap.