Annelyse Finley  from my point of view someone who has been in the trenches for 40 plus years. you have two distinct things going on... one as J martin explained your going to use your Freddie fannie slots 4  or some times up to ten to buy rental homes with and a personal resi.these will need to be in your personal name and proper insurance with an umbrella usually suffice'sLLC for me is not about asset protection as much as it is about setting up partnerships and uneven distributions of profit or loss.. plus loss carry back if needed for us self employed folks.

The IRS generally looks at intent as well as actual facts and circumstances of each transaction.TL;dr - holding something for a year and a day will not necessarily make it capital gains.

Only 3 out of 100 have life circumstances that make them super motivated and they want to sell fast and for a discount.

If real estate management IS your business, make distinct (in distinct accounts that do not have joint bank statements) your "managing existing assets" money and your "acquiring additional assets" money. 

What circumstances could arise to prevent me from selling it right away.

Now if the market is rising in value the bank might be slow to do anything as they likely get  a higher price by waiting.Each property and circumstance is situational.

There's so many variables and complexities to taxes that make it difficult to obtain appropriate guidance for your specific circumstances from this forum, or any forum for that matter.

If you answered, "to put people first and improve their circumstances" then guess again!  

@Dmitriy Fomichenko I agree that IRS can always look at the "total facts and circumstances" of any transaction, to determine "intent" but your intesions are extremely hard to determine and your even allowed to change your intentions,  For example, if I buy a property with the intent to flip but then can't sell it and change your intentions and decide to rent it.  

As you were told poisoning takes a life time of exposure under normal circumstances.