In the maintenance agreement, they were responsible for paying for any future repairs not only to their physical water line, but also for any damages to our property, regardless of what/who caused the damage.

Simple...you should test the approach of achieving the goal to bid offensively low (if on AdWords) to get as cheap CPC as possible so that we can get as many clicks and leads for our budget that is physically allowed.

Hard money is just a term; HARD is just the Asset “the property” is in “physical object”.

It did not break the deal but it eliminated most doubts about the physical structure. 

Then I found the physical inspections to be easy as I wasn't a slum lord and actually maintained my units.

Sell house, deposit check, take out initial deposits, split balance 50/50, close account and move on to the next one.I would also suggest if you are both physically working on the property that you agree on an hourly rate and pay it if one person works more hours than the other.

The fundamental problem is that it became physically impossible to build a property under 350/400k in southern Ozaukee.

All you need is for someone to serve papers....and someone to be present when the physical eviction occurs.

The hardest part is the physical interface for everything. 

There is a case right now in front of the supreme court for companies having to pay sales tax if they sell an item in a state to a consumer even if they do not have a physical business there.