But, I wanted to know if my reserved/conservative stance was warranted, or was I unnecessarily leaving money on the table. 

Condition of the property warranted a concession from the seller, and the number he was willing to go to didn't make much sense from a cash on cash perspective.

Elderly person, someone with special medical needs that would warrant extra concern and faster response ??

Howdy @Ebony BoltonBased on a quick analysis it warrants further inspection.  

I agree that being flexible could be a slippery slope, but I have a few reasons why it is warranted in this particular situation.1. 

Hey Brendon,We have a small campground we built so hopefully I can offer a little help until others contribute.Lots of things determine the construction cost and not being from your desired location handicaps me.That being said maybe I can at least shed some light on your idea.Things that will determine actual per lot cost are power,sewer and water.1-Underground power is the way to go,more cost but more spaces because of overhead clearance restrictions.2-Available sewer also is best but septic systems work fine but cost more and chew up land area and require more long term maintenance (we have septic systems,3 spaces per system). 3- Water,there again country,or city water is best but a well and your own systems works fine also just requires more upkeep.As far as the park itself it's best to (IMO).1-set park up with three sections to accommodate different styles of campers,over night,seasonal and annual (if area warrants),all three have there pros and cons,overnight area is cheapest to construct since you'll just have bathhouse ( no septic,power or water per site). seasonal spaces will be completely developed but will rent for highest amt because it's short term (usually power is included into rate).Last is annual which again lots are fully developed but not so much in and out and consistent cash  flow,tenants put utilities in there name as they would a SFR. 

without details its hard to say.... but probably not your problem. advise neighbors to call police if it is warranted. inform tenants that neighbors will be calling police if warranted. inform tenants that these are the things you think about when you decide to renew or not renew a lease. otherwise not your drama.

OK, then why not just put on the MLS "flood zone, no master flood insurance, non-warrantable condo, can't get an Agency 30YF mortgage on it" & solicit only hard money, portfolio high rate ARM, or cash offers, instead of wasting everyone's time, if time is truly of the essence?

We are trying to cash out from a Non-Warrantable investment condo (High percentage of non-owner occupied units) and not able to do it through conventional Fannie Mae loans.

I do think a moderate increase is warranted and should not scare anyone off.