When you are building a legacy to pass down to your kids and grandkids, asset classes that take multiple forms is critical to longevity.If you were a long-term investor of Blockbuster stock at one time you would have felt like this would last forever but stick to the fundamentals and invest in tried and true methods for the long run.

My only question would be are you open to implementing the BRRR method with this duplex or are you looking for something move-in ready?

Quote from @Kevin Sobilo:  My leases state that any monies owed are payable "as rent" so that if they do not pay that damage bill I can simply choose to evict them for "unpaid rent" which is simple and cookie cutter.FYI this is not legal in Colorado. https://leg.colorado.gov/bills/hb23-1095 prohibits "A provision that characterizes any amount or fee set forth in the rental agreement, with the sole exception of the set monthly payment for occupancy of the premises, as "rent" for which all remedies to collect rent, including eviction, are available"As for the $600 faucet... it sounds like you just called up a random plumber and told them to install a faucet.

What is the interest rate on that and the furniture payment.

I provided a 25% down payment to help create some cash flow and did my best to provide documents as quickly as possible to make it easy for the lender to close on the deal.

For mortgage debt, the following additional requirements must be met:the party making the payments is obligated on the mortgage debt,there are no delinquencies in the most recent 12 months, andthe borrower is not using rental income from the applicable property to qualify.

Take a look at AirDNA, the enemy method, STR Insights to get a better idea. 

I get a judgement and execution and contact the local constable.After a month or two, if they don't pay they get summonsed to a payment hearing.If they don't show, now the constable threatens to arrest them if they don't pay.Just collected 5k judgement doing this.Good luck

Average Houses are around 600k where I am living which means if I put 20% down I’ll be looking at a payment around 4500$.

While I am not an accountant, and you should speak to yours about this, there is a loophole in the tax code called the STR Loophole which allows your STR (provided you are not using a PM) to be counted as active income/active expense so that the costs, payments, depreciation etc. goes against your active W-2 income.