Front two units are full time STRs with a rear studio operating full time MTR. 

My property has a rear detached garage with alley access, so I’m exploring options there.5.

Quote from @Stetson Oates: For example, your 16 year old rear ends a family of 4.  

“But, what if inflation does rear its ugly head Andreas…?”

The rear house has all of the value as it is a 1300 square ft home from the 70s; the front house is 580 sq ft built in 1952. 

It is in a northern MI Downtown area (opp zone) in a county seat with 2 hospitals, had it re-zoned to mixed use, and is considered blighted which makes it eligible for MEDC funding of up to 50% of project cost.It is 8k sqft (4,000 each level) with the lower level being a walkout (top level is street level with sloped drive down to the rear of the building).

Needs gutters, full kitchen and bath, floors, paint with some drywall repair, windows, front porch and the deck on the rear is pretty poor as well.

However the property has a freeway behind it and hence no rear neighbors /more privacy.What do you want to to?

A larger storage building (10X 12 tall barn style) is in the easement and I was told they would move it and move it back, at their cost.The access to the two rear units will be obstructed and damaged by the heavy equipment and the tenants will be upset and don't have another place to park their 4 cars.

ThanksA property two doors down from one I own with an old house shoved in the rear of the lot sold for $650k in 2018, the developer that bought it built a new house in the front and had the old house declared an ADU.