Note that this is ground level unit and there was a theory at first that external moisture is causing it so we tried to work with the HOA. 

When an agent puts in the listing to their MLS, those sites get fed information from the MLS system every 10 minutes (or so), and listings start showing up on those external sites, with all of the data that was input from the agent.Sometimes the listing takes 10 minutes to get to zillow or like sites, sometimes its a whole day. 

Any time two or more fixtures are being used at the same time the water in one becomes non existence immediately.Each side of the duplex has its own full bathroom, water heater and kitchen sink.The duplex is on a concrete slab.I cannot find the shutoff valve (except for the city shutoff valve) or the prv (I'm assuming there's not one).The water supply line is 3/4 and cutting a hole in the wall I discovered the lines feeding the fixtures are 1/2.City has came out everything is good on their end and they place a pressure gauge on external tap and said its lowI checked faucet aeratorsthe 3/4 main supply is cpvc and everything else is copperThe water bill is not high so I assume there are no leaksA plumber is suggest converting the lines that are 1/2 to 3/4 until it gets to the fixture.

Costs: 155k (working on lowering w/ closing costs included)HOA: 265 month (includes external maintenance, tennis and basketball courts, and poolRent: 550 (11x13) and 500 (11x11) according to comps + utilitiesProperty taxes: 1500/yrI have 110k in private student debt, but after putting a down of 17k - I won't have to pay for rent and my commute to work is greatly reduced.

Needs $27k of renovation work: electrical, plumbing, painting interiors & cabinets, fix external rails, add roof cap.

He has probably been doing it a while and when you are committed to something, it is sometimes hard to see external threats.

Some companies have similar clauses, with the company or its current shareholders having a first right of refusal, and then the exiting partner can sell to external investors interested. 

I have been assured that the contractor had not posted any external advertising signs and the house was in no way derelict. 

I am also attracted to Real Estate Investing because I can really be involved personally in this investment unlike other investments such as the stock market that have many external factors that you have no control over. 

Find out what the issue is first, before moving to harsher measures.