If there are no recent sales among the other houses along the tracks, the tax assessor's data may provide some clue as to estimated FMV of your property and those surrounding.In your post, mention which commuter line runs by the house, and whether it's across the street (preferred) or in the house's "back yard" (YECCH!).

I am getting between $0.90 to $0.95 per square foot for units with city utilities, attached parking, and private yard space. 

.), or sales person at an equipment rental company who rents equipment to developers,  or real estate agent, or work of some kind at an electric utility company who provides electricity to new neighborhoods, etc.For duplexes / triplexes consider working at a hardware store/lumber yard in sales or stocking items, or in any residential construction trade (concrete, lumber framing, plumbing, electrical, drywall, etc.) or as a leasing agent or maintenance person at an apartment complex, etc.Anything related to the goal of developing land and designing and building or selling homes would be helpful.

I personally like sfh because I self manage and put all yard maintenance and snow removal on the tenants.  

There's some active termites and a water leak in the water main in the front yard.

New homes in most markets cost around $40,000 to $60,000 including shipping and set up if you can buy factory direct.1990's used homes (mostly repos) cost around half that.1980s homes cost around $15,000 set up and renovated (but are very hard to find in salvageable condition).You can find the new homes/factory direct at CAVCO or Clayton (if you are a park owner only). 1990s repo homes come from repo lists from 21st Mortgage, Vanderbilt Mortgage, etc.

Again in the city, probably not a big deal, but you don't want the chance someone put a rig or a pump jack in your back yard, when you don't own the mineral rights.You'll see that option on the Mineral Rights Reservation form.Could be worth nothing? 

My grandfather ran his corner store for about 30 years then sold the building and the yard attached (it was huge) for about only $400K.

We had yard signs made that we put in yard. stated our name of our business, phone number and says under renovation, will be available soon.

Good Evening BP community, today I drove by a property with a "for sale by owner" sign in their front yard.