Effective January 3rd 2022 they are not allowing STRs in R-1 zoned areas.

The expense is more up-front but is far more cost-effective in the long run.Regarding your specific question, unless they have an agreement with you there is no expressed or implied contractual obligation for you to hold the rent. 

If you want to go back it will be easier than you think if you realize sitting around relaxing isn’t all it’s chalked up to be you can then decide to engage yourself in something else without having blown a ton of money

My question is the following:- Is the Holding LLC the only/last entity where I will engage an accountant to file tax returns before distributing the income/profits overseas to my tax residence. 

I would engage with a lender/broker.

This, in turn, makes each investment a little safer because it reduces the effect that experiencing a loss will have on your wallet. 

Most of the brokers/lenders I engage with can recite the 60-day requirement, but seem never to bother reading the very next sentence.

How do I make a system that uses the drivers effectively?

However, it does have the effect of reducing the passive loss balances you will be rolling forward by 10K. 

Increase not only the social media posts but also engage with your followers (sending a thank you message for a new follower goes a long way!)