If the tenant has paid every time on time with no issues it’s a simple mistake probably a electronic timing glitch. 

Well, it’s obvious they made three mistakes, here in reverse order of importance3.

You can hear real-world examples of how others have built their investment portfolio and (hopefully) learn to avoid their mistakes.4.

See if you can get a positive result on this deal as quickly as possible and then figure out the mistakes and next steps.  

This is my first rehab, I'm bound to make a few mistakes.

Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

But, in the event you really are persuaded that it is important to separate each asset, ensure that whoever is managing the books/monies on the LLCs are doing it 100% correctly as even a small mistake can allow would-be litigants to pierce the corporate veil and render all of it in vein anyway. 

@Jackie Liu right off the bat, you're making a common mistake!

Thank youGustavoYour first mistake was setting this up before getting the proper cross border tax advice.

That mistake could cost you hundreds of thousands.