Rev Proc 2008-16 does create a safe harbor for your investment intent at 2 years of investment use coupled with  some other qualifiers.  

Underwriting guidelines are more strict than on residential loans, and buyers who might qualify for a condo loan sometimes cannot qualify for an individual tenancy in common loan.

This transaction involves the sale of your relinquished property through a Qualified Intermediary.

For example, would a temporary work visa qualify?

If it's a DSCR loan, you could get up to 80% LTV if the property qualifies.

Each DSCR loan is separate and qualifies separately, so one doesn't necessarily affect the other except for the liquidity needed to close since you'll have multiple down payments/closing costs for each transaction.

Quote from @Mary Jay: Quote from @Jay Hurst: Quote from @Mary Jay: hi guys,so I have a lot of equity in one of my rentals but the interest rates are super low on it. so I dont want to do a cash out refinance on it because I dont want to lose the 3% interest rate on it.I want to get some cash out of it via Heloc or another vehicle,  so I could buy another rental, but its not my primary, so I cant get a HELOC on it from lots of banks....I think PenFed does helocs on rentals, but because I have more than 5 rentals, I dont qualify for their HELOC loan.IS there a bank that would give a HELOC/cash on a rental?

There are several articles that do an exceptional job of explaining who, what, where, why and how tax payers qualify for the ‘STR Loophole’ listed here:The Short Term Rental Tax Loop Hole: A Game Changer for W-2 Wage EarnersThe Short Term Tax Rental Loop Hole: What Investors need to know The implications on the Oregon and California Coastal STR market is a strengthening buyer pool for luxury rentals in the $750-1.5M+ range.

Almost all rentals are technically a business, and your rentals are allowed to deduct the same qualifying business expenses with or without an LLC or an entity. 

Actually, you may not need to qualify in the second year.