What is the best course of action? 

It isn't a big job but I don't want things to go south so I stay in it.Of course I practically live on this forum so I pass along any pertinent info I find as well as answer questions.

Of course - having a w-2 job will never prevent you from setting up an IRA including a self-directed IRA.If yes, how can I fund it?

What should be my course of action- I really don’t see the tenant appreciating what has been done and would rather break the lease. 

However, you can defer taxes under §1033 involuntary conversion if you elect to reinvest the proceeds into a similar rental property within two years (three years if the government condemns the property or threatens to do so, and four years for a principal residence in a federally declared disaster area).To reduce taxable gain, consider:Electing §1033 treatment and reinvesting the full $300K into a new rental property to defer taxes completely.Partial reinvestment, where only the portion not reinvested is taxable.Properly documenting all replacement costs and property details to ensure IRS compliance.Using cost segregation on the new property to accelerate depreciation and offset future taxable income.Since the §1033 election must be made, consult a tax professional to ensure compliance and maximize deferral benefits.This post does not create a CPA-Client relationship.

Readers should seek professional advice.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Readers should seek professional advice. 

Scott very professional . 

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