I have found a Chinese manufacturer that will ship me a container full of counters, toilets, tubs, etc. and the discount is pretty significant, but between the low price and some language barrier, this gives me some concern about quality, correct measurements, etc. 

Recent park we bought at a discount because of a “failed septic”.

Do you know that if you can be a First Time Home Buyer and use the HUD listings and loans that you get all kinds of discounts?

If it's a strong seller's market, there's not much reason for a homeowner to sell their home at a discount.

Did they offer you a 10% discount?

Also, don't discount secondary markets - they can be great cash flow plays.

Fees and prices can be discounted multiple ways.

TI...aka Tenant Improvements...your future tenant may want to negotiate different terms for the move in, like a few months discounted rent(this could be on top of the above mentioned vacancy) while they build out the place, or some concession for the Tenant Improvements, if you  have an empty shell it could require extensive work to make it business ready for different types of business, think needing to add bathrooms for a gym(dozens of showers and toilets, lockers, etc) or adding a fully equipped commercial kitchen(walk in freezers, special fire suppression, a few extra sinks or drains) With apartments, I rarely have to do extensive build outs or concessions for tenants, even if I have full on renovation, it is almost always replace the old with same but new, ie tear out old kitchen put new kitchen in same place, same plumbing, just new cabinets, and flooring(if you are at all handy, you can do most of it yourself, or be able to estimate accuracy of bids easily).

Sold it and broke even-we were competing with the builder who was providing deep discounts on newer models.

Cap rates in Brooklyn are quite reasonable now (~6% can be had) and tremendous upside exists once the city returns to "the before times".