For example, if a seller knows we are in a 1031 and says "no concessions/repaur requests, take it or leave it"  after our 45 day identification period is over we are screwed with a bad deal.

The product is available but the pricing is not as pretty by any means, you’ll be looking at a rate 1-1.5% higher and possibly an extra .5-1 point in cost right off the bat. 

I think you may add a bit 30%-50% more on the cost of Estimated Repairs.

Purchase price: $163,400 Cash invested: $25,000 Sale price: $240,000A buy&flip project on a Single Family House10K - Flooring, Trims and baseboards8K - Interior Painting3k - Updated water heater, and gas permit2k - Other minor fix, ceiling fan, windows, light bulb, new fridge, and more2k - Holding cost, HOA, and other related utility feesTotal cost of repair - $25k

Multi-Family may require more maintenance (Con) but that cost may be offset by installing a coin-operated laundry room (Pro)3.

The city approved rental license inspector essentially just tested to make sure there was access to hot water, access to heat, no unsafe conditions like exposed electric wiring, CO/smoke detectors present/functional, fire extinguishers present/not expired, etc.

And here are several other examples of mortgage rates paying no attention to the Fed Funds Rate.This isn't a mortgage-specific phenomenon.

Look over bids with a fine tooth comb, no bid is the same.

How much does it cost? 

If gone unaddressed, complaints can lead to costly violations & fines.