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. 

We are still dealing with national supply chain issues on certain materials which has driven up the cost of almost everything.

Corporate rentals are a niche.

This has a lot of administrative overhead, the LLCs being disregarded entities may pierce the corporate veil.

What are best corporations or banks to use for this?

On average, homes in the area have seen an increase of 8.18%, significantly higher than the national average, which typically ranges between 2-3%. 

I had to take a break from my RE business because of my corporate career.  

However, I just checked a national underwriter's manual, and it appears CD's are insurable, but there are criteria unique to them. 

When I was working in the corporate industry, I began investing in real estate.

Quote from @Ko Kashiwagi: Hi Anna,Are you investing as a foreign national (with visa, Green card or ssn)?