Lately a lot of people have mentioned feeling frustrated that they can't find deals that cash flow on the MLS. 

If your houses are spread out then it might get frustrating keeping up with 6 different plumbers.If you do not want to be seen, this can be done without property management it's just harder to do.

I don't know what amount of capital you are willing to spend on this rehab but do what is safe for now, get the experience, see for yourself how truly frustrating rehabbing is, then go on from there.

I'm just so frustrated that these people take no responsibility nor do they seem to even care...

Working with the system is extremely frustrating and usually less productive that resolving problems yourself (as with a lawsuit). 

A few things transpired that I found frustrating because they hadn't happened at previous banks I worked with. 

Plus if you don't know what features you need now, you can start with the basic provided features and later on you've the space to add/build moreThe only cons with this mix, it needs a lot of technology tweaks to set it up the way you want and to automate it to the lowest level offered by other CRMs, which would cause some kind of frustration to start with very basic one like this, but believe me, it's worth all the effort you'd pay for it.However, if you are not a Tech-savvy guy who is always intrigued by new technology and new operations business model/strategies then I'd recommend other CRMs that provide all what you need with minimal effort.

Extremely frustrated.

It's very hard to negotiate a decent price and you make your profit when buying, not selling.Next time will be easier and hopefully not so frustrating for your dad.

The other major types are:Failed in construction, was frustrated that his genius was never recognized, decided to go be an inspector so he could find fault with others' work.