Their play would be to make an offer, if the owner doesn't sell they will more than likely go back to thee city.There are so many ways to put an owner in a vise and crank it down on them, shut the place down, red tag it, devalue it and you might get another offer, or the city will take it as a public benefit for the tax base and sell it for less than you could buy it for to McDs.

Also, many states have enacted laws against puppy mills.In addition, you have already allowed them to turn their home into a car repair shop and storage area, devaluing the neighborhood, so now you think you should encourage barking dogs too?

Make sure you price in the former as it makes this property MUCH less appealing.You can get by with much lower maintenance costs, but then you devalue your building over time, if it's in good shape now, you had better keep it that way or you won't have much money on the table when you go to sell it.

I'm sure if the frog guy created something on his property to devalue the developers property that developer would sue that guy in a heartbeat.

I say risk, because when a flipper/ landlord guts a property at the beginning of a rehab, they have temporarily devalued the place potentially to a lower value than the amount of money  borrowed against it.

Can I put a trailer in the middle and devalue all of the properties? 

In my market, leased solar will typically devalue the property about $25k.

Both Units are separated and all utilities and addresses are separated as well, they are just In the same land.In this case; will appraisal might devalue the small unit, now named by the city ADU since the main house will be the manufactured one?

@Charlene Turczyn that sounds tough, sorry to hear that.If the property has devalued that much in 9 years don't you think converting it would be chasing good money after bad?

Furthermore, as time progresses, the inflation is devaluing the currency so you are paying the loan off with cheaper money.