My goal is to learn as much as I can, connect with experienced investors, and start building my portfolio.I believe wholesaling offers a great opportunity to get my foot in the door without the large upfront capital required for traditional investments.

Also there is a special tax abatement for office conversions but requires the developer to retain 15% as commercial use.So we have the option to stack them and consolidate.

The goal of the first 3 deals will be to target 1-4unit styled homes, requiring minor-rehab.

The syndications might be invested in multiple states which will require multiple state return filings which add to costs.Are you getting any consulting throughout the year?

Just like any business, the reward is big but STR requires a lot of dedication and self sacrifice. 

For the historic district, I would just make sure that you fully understand what requires approval and what that process looks like.

If I require a separate EIN then I would just make regular LLCs.

Are there any others in CT which can fulfill these requirements?

It's a double skip process that requires gathering owner information on the LLCs from the secretary of state or corporationwiki (as @Eliott Elias stated), and then skipping the owner which is why you will only find a handful of companies that can do this accurately. 

They do, however, have up to 60 days to return a security deposit after a tenant moves out.If an eviction is necessary for nonpayment, landlords are required to send a seven-day written notice of the payment due.