I don't have to deal with day-to-day decisions and I just get monthly/quarterly reports. 

We talk with them quarterly to tweak stuff.

@Chad Smith@Chris Mason1) Regarding taking a 401k loan: You would have to confirm that your 401k plan allows for a 401k participant loan (and that you have not had a outstanding loan in the last 12 months since your ability to take a loan is reduced by the amount of the highest outstanding balance of any 401k loan that was outstanding in the last 12 months).If yes, you can borrow up to 50% of the balance not to exceed $50,000.The repayment terms are equal monthly/quarterly payments (as you prefer) of principal and interest (e.g. prime + 1%) spread over a 5 year term (or longer if you will use the loan to purchase your primary residence).

Columbus provides a table on their website on what you should expect to pay each quarter based on the suburb, and amount of people.The reason I suggest doing this, is so you're in control of the property.

I also signed up under the National CREIA (Real Estate Investment Club) and I get quarterly refund gift cards directly from HD.

Note: a fourth bedroom did not add much value... 

I had only 2 properties for the 1st quarter of 2018,   only 3 by the half of the year,  and ONLY recently did I add properties #4,5 and October #6 property.    

The property has 5 bedroom units, each with a private bathroom, with 1 of the units being an owner quarter.

@Joe WoodYou are normally required to pay estimated taxes throughout the year to avoid the penalty for failure to make estimated tax payments.Did you make estimated tax payments in the 1st, 2nd and 3rd quarter?

At Your Castle Real Estate's quarterly meeting we had a presentation on the economics of supply and demand in the Airbnb market.