If your answer is indefinitely, then you are wealthy. 

Especially for investors who are farther along in their investment careers & want to take a longer view (stability is also a factor) and have the cash to park indefinitely.

I have reached out to Navy Federal, Ameris, PenFed, TD bank, US bank and TCF bank - all of which have indefinitely suspended their previous investment HELOC programs. 

This allows us to keep on top of payroll and sub-contractor payments, while also ensuring projects don’t drag on indefinitely.

Positive cash flow allows you to hold indefinitely, through the market troughs, and never be forced to sell under duress.

However, if you plan to add units in the future our stay gone for the indefinite future, hiring an established management company may be something worth considering. 

I wont go into those details here, but with the 1031 you have the potential to defer taxes indefinitely. 

I have a garage I was going to convert to a studio apartment but the bud was $80,000 and so I’ve indefinitely put the project on hold because for that price I can put a down payment on a $400K building and be collecting $6-8000 per month in rents. 

Because if you can hold it indefinitely then you stand to make money from the loan paydown, hopefully appreciation, and cashflow. 

In theory those gains could be partially or fully offset indefinitely until I die and then my basis would be stepped up to where the gain wouldn't be owed by my heirs.