It is a matter of getting out of your comfort zone a little bit but not so much that you will burn out or lose sleep.

That's one of the fastest ways to lose money. 

Is this 1 flip where you're going to lose $20,000 and never touch real estate again? 

Why would you literally wait until the last minute, when a flat tire or difficulty finding a parking space be the difference between keeping and losing your home?

If  the Due on Sale clause was called, there was no room to refinance or sell, the seller would have their credit trashed, the buyer would lose the property and the 2nd lender was going to lose everything.

Have you ever heard of a Landlord being sued by a Tenant and losing property?

You are LOSING money because you didn't even raise rents to cover those increases!

Some operators close upon tenant moving in .. some when they get CO  myself I always try to get them to close before tenant makes the transaction much easier on the seller not having to interrupt the tenant and doing punch list much easier then put the tenant in.. in my mind if you are going to have an issue losing one month of rent because of this your being unrealistic for a long term hold your going to have vacancy at some point so why not the first month. 

Yes, you may lose out on income in the beginning when first trying STR out, but you'll never know until you try. 

The interest that it does accrue is money you don't lose, but rather it does go back into your investments.