I am not fan of these types of properties unless the area has long term improvement prospects. 

Is there inventory to buy?

You could take the equity you have and triple or quadruple your cash flow while also improving your opportunity to benefit from appreciation because you own much more real estate.

Yes the ebay business cash flows.But to be honest I want to move on to bigger and better things.And all the inventory is taking up a whole room in my house.Which I can use the space lol.Thanks again.

In fact, passive income has generally a better tax treatment than active income.Flip properties are considered the sale of "inventory" so you are a dealer of property. 

Geez...that's like asking what do I need to know about construction, financing, valuation, municipal codes and permitting, Landlord/Tenant Laws, liability protection, marketing, tenant screening/lease contracts, running a business, market demographics/inventory/year-over-year appreciation/rent pricing - and a whole lot more.  

The more improvements you have on your property the less favorable it is for the oil and gas companies to build pads or facilities on your property as the cost for damage payments goes way up.

Or are you talking about doing nothing to improve/upgrade the property but just put it back on the market "as is"?

There is no legal way to 1031 a flip as it is considered inventory.

(We have an IRS lien that will be paid off in four years and I am pretty sure that could be worked around.)My wife is hell-bent on being able to "burn the mortgage" as soon as possible and is resisting refinancing with a $30K cash-out to drastically improve the functionality, curb appeal, and comfort of the home we've lived in for 35 years.I feel we should do the refi, make the house new again, and enjoy where we live.