Considering a 10+ unit residential commercial property if one already owns the land, has everything else in order: civil engineering, soil survey, Phase I, and architectural blueprints...if the owner was forced to sell due to lack of financing and or some other reason does having those things necessarily increase the value of the vacant land?

If your QI doesn't get it ask them what the reinvestment requirements are - purchase at least as much as your net sale and use all of the proceeds in the replacement purchases - nothing in there about number of properties at all. 

I don’t believe you need to allocate more for a STR compared to a LTR, but should consider the life of the property and what expensive items might need to be replaced/age of these items such as the furnace, A/C, roof, water heater etc.

Anyone has recommendations for civil engineers who can investigate the problem?

It's gone thru foreclosure and last buyer paid cash, so no engineer's report easily found.   

So long story short, in the past 1.5 years, we have renovated 9 of the 24 units, installed new roofs on 3 of the 6 buildings (this was known at purchase), and replaced 8 HVAC systems. 

Or more akin to being savvy enough to understand structural engineers in regards to loadbearing walls and the like?

Has anyone insured a rental property for only loss of the building without replacement?

Our understanding is that it has a single-bottom cylinder and we expected to need to make some expensive repairs or simply replace it, but we weren't sure just how soon.

I need to have my roof inspected and it is possible it is time for a replacement at my property in Austin.