First, I'd like to add concrete to provide an extra parking spot.

Other than that, you'll have to check regular maintenance items (i.e. roof, heating and air conditioning, plumbing, flooring, etc).

Pre-plastic, it seems like septic tanks can either be concrete or steel.  

Added some new floor joists and concrete footers in the crawlspace, replaced all subflooring, added LVP throughout home, opened up two walls, new paint throughout, new everything in kitchen including granite countertops, converted half bath into a full bath by adding a shower, major landscaping/tree cleanup.

Basically, from what I understand, if you sell a building as a particular Occupancy and the CofO is different, the Contract of Sale can be canceled due to mis-representation.In my experience, I was the Buyer of a buildings which was a 3 Family building but the CofO was for a 4 family building here in Brooklyn (Clinton Hill is the neighborhood).I fully believed I could have canceled the Contract since it said it was a 3 Family, but I purposely did not because it was to my full advantage to buy it with the CofO of a 4 family as I wanted to convert it back to increase the rental income.BTW, once I bought the building, I immediately knocked out a staircase to the apt with 2 floors and installed another kitchen to have 4 total kitchens in the building on each floor.

Looking to install Luxury Vinyl Planks or tiles in a second floor apartment and am always on the quest to deaden sound transmission.I used the link from the big blue store.  

The unit with the lock is an apartment on the first floor of our two-family home. 

I am purchasing a home in Rexburg, Idaho that has a second floor deck/home addition that has settled.

Purchase price: $310,000 Cash invested: $21,000 Currently "House Hacking", living on the first floor of a 2-family house and renting the second floor.

New roof on home and garage, electric update, kitchen, baths, floors, front porch, landscape What made you interested in investing in this type of deal?