Make sure you check your bylaws to confirm there are no issues renting out your condo as many HOAs have put limitations and other requiremets in place.You'll also need to update your insurance coverage to a landlord policy and make sure you understand any vacancy triggers - many policies will auto-terminate if home vacant more than 30 days.Start researching rental applications and leases ASAP, so you're ready with those when you start advertising.

We would like to put each of these properties into individual "disregarded LLC's" for the liability protection but we don't want to trigger a capital gains tax situation.  

I have been interested in real estate for a few years now and decided to finally pull the trigger.

Option 1:Pros:Simplicity: You avoid the potential complications of alerting the lender.Maintains Low-Interest Rate: Since your loan is at 3%, you continue benefiting from this favorable rate.Avoids Immediate Full Payment: You won’t be forced to come up with $45k immediately.Cons:Risk of Detection: If the lender identifies the payments coming from an LLC, they might call the loan due.Potential Consequences: If the lender enforces the due on sale clause, you might be forced to pay the remaining loan balance quickly.Option 2:Pros:Transparency: Being upfront might build trust with the lender.Possible Flexibility: Given your solid payment history, the lender might agree to the arrangement.Legal Compliance: You avoid any potential issues with violating the terms of your mortgage agreement.Cons:Risk of Loan Acceleration: The lender could still decide to call the loan due, forcing you to pay the remaining balance.Potential for Higher Payments: If forced to refinance, you might end up with a higher interest rate.Given the pros and cons of each option, but a cautious approach might be best:Consult a Real Estate Attorney: This can give you a clear understanding of your legal standing and potential risks.Evaluate the Importance of the 3% Rate: Weigh the benefits of keeping your low-interest rate against the risks of potentially having to pay off the loan early.Consider a Gradual Transition: This method allows you to continue benefiting from the low-interest rate while reducing the risk of triggering the due on sale clause.

Quote from @Trevor Powers: Network, read/listen to books, and don't be too hesitant on pulling the trigger on something you believe is a good deal.

In Pennsylvania, transferring property between LLCs triggers realty transfer taxes.

However, when you sell the individual condo units, capital gains tax will be triggered on the gains attributable to those sales.Allocation of Basis: The original purchase price and any improvements made should be allocated among the individual condo units to determine the basis for each unit.Gains Calculation: When selling a unit, the gain is calculated based on the difference between the allocated basis and the sale price of that unit.Partial 1031 Exchange: You may be able to use another 1031 exchange to defer gains on the sale of individual units if you reinvest the proceeds into other like-kind properties.

I never saw an update.I am still tempted when I see low prices, high rents with returns of 18%+, but all these bad experiences are making me not pull the trigger.

The short answer is yes you will likely trigger a tax consequence for selling your property. 

I pulled the trigger on one of their Bennah Oaks properties in December.