Maybe they didn't know, but they should be putting pressure on the seller to release the money.I fear the inspection and appraisal money is lost.

That means an air pressure test and a plumber running a camera through the pipes.

Gauging the accuracy of your income numbers is another great reason to talk to a property manager, but if you're planning on living in one of the units then your income estimates line up with what I'm seeing on Rentometer:One other risk to call out is the after-repair value. 

Land is not easy to gauge value on and certainly not going to be accurate from looking at comps of of sites like zillow, the chances of finding sold lots in the same neighborhood, similar size and shape and in same condition will be very tough at best.The best way to calculate a value of land is to work the numbers backwards and the starting point is the key as one piece of land can have different values depending on what use and what improvements are made.As an example, lets say you find an infill lit in a residential neighborhood where the subject lot is zoned for same.

I have already done a walkthrough and had a plumber do a pressure test on all the pipes.

No matter whether you decide to buy & hold (search for tenant nightmares), fix & flip (search for contractor nightmares / flipping nightmares), or even being a Realtor (call me and I’ll make you cry) - it’s all brutally hard work.I’m sure filling today’s 72nd scrip for amoxicillin doesn’t fulfill your wildest fantasies, but it’s darn good income, and it’s stable.That in itself empowers you to make investments under a lot less pressure.  

Also gas company will come out and pressure test the lines to make sure they are ok.

Maybe squeeze some epoxy in the crack, pressure wash or sand blast exterior and stucco all.

Pressure wash the brick and see if it doesn't look better.

Find out what the comps are going for and what your ADOM is and you'll be able to get a better gauge on what kind of offer has a higher probability of being accepted.