The house was built in the 50's and the plumbing was upgraded at some point to copper and most of the major items were replaced at some point and time to meet more modern standards.

Look to someone like American Modern. 

No repairs are needed everything is modern updated an super clean.

I finished textured and painted the walls, modern brighter light fixtures, epoxy floors and vinyl base.

But, like with the rest of society, there are outliers who cause you a bunch of problems. 

I hesitate to call the current market a bubble - there's just too much up in the air to really see what's what, and while RE is a big part of the general health and status of the economy, there are a number of other factors that determine what / when / how the correction happens.The bigger they are, the harder they fall, so unless we (collectively as a society) really have our crap together (which we don't), when we eventually do go down I think it's gonna be a doozy. 

I am new to the real estate society I've really been trying to find the right people to network with and I'm willing to pay to learn as much as I can.I have been trying to find leads through code violations but no results are there any more strategies that I need to know of?

Clean plate ware, free of designs can add to an aesthetic appeal and add a tidiness to your modern kitchen.

That is a major part of the problem in our society. 

I'm fairly confident that with modern upgrades the house will support that valuation and command high rents.