Massive layoffs, banks are not lending, people are not buying Starbucks ...If you see the stock market just had one of the biggest gains in history the virus is an excuse to sell and correct.All three benchmarks closed in correction territory, defined as a decline of at least 10%, but no more than 20%, from a recent peak.The only pandemic we need to worry about is society's utter hysteria. 

But I'm hearing about the corona virus stuff, how the stock market had the biggest downfall right now, and I'm just worried that in a few months, this property will be worth half of what I would pay for it.

The only con I see, and the biggest one at least for me, is dealing with two property management companies. 

Would you use projections on increased occupancy and gross revenue? 

The biggest obstacle is creating templates. 

(Focusing on Key Revenue generating activities instead of getting side tracked)One of the items most decide to outsource or hire an assistant for is Lead Generation.

How much money should I be putting away from the revenue I receive from rental income on a duplex to pay for income tax?

Building your team, lenders, title companies, Realtors, insurance people is the biggest deal in this business, I believe, and a close second for BRRRR is knowing your numbers better than all of them to keep them honest.Max ltv on a refinance is 75% for the most part. 

As for prevention, the biggest thing is to avoid any wood touching the ground.

Its more work but higher revenue & the work can be easily outsourced once you put the right systems in place.I hire inexpensive offshore PMs who works US hours & speak eloquent English.