Will the LLc need to be converted to a partnership and corporation as a separate entity?

These properties were not distressed quite the opposite.. but they had 100k to 3 to 5 million of standing Timber on them that if we could purchase our Timber deed we could turn those trees to cash within 90 days..PS I had created a hand made custom data base of properties  10 acres or more not corporately owned that Aerial Photogramy show Standing Timber of an Age we deemed Merchantable. 

Corporate bond return is at 6-7% as well.

Also, I would have probably gone crazy giving up control and leaving my retirement funds to the whims of corporate CEOs that mainly have their own self interests at heart.

This means that you will probably need to pay registration and filing fees in at least 2 states if you don’t buy CA property as a CA resident.Any lawsuits should be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced, some debate as to SMLLC).

I would have expected someone with 15 year experience plus their own accounting firm to know these things that I learned in just last few days (with your help, of course, and also thanks to @Basit Siddiqi @Eamonn McElroy @Taylor L.)But it’s possible that their specialization is something else (like corporate taxation) rather than real estate.

These days I have travel nurses and corporate rentals as MTR.

On the corporate side I have seen both SPE ("Special Purpose Entity") LLCs and Trusts used for holding assets, largely depending on what the buyer is looking to achieve.

Here are a few initial questions that I have: - I'm wondering if there's a recommended corporate structure for these type of business activities, focused primarily on both short-term and long-term rentals.

If I had to try and sum it up it would be: Form a corporate entity for asset protection; buy properties using leverage to maximize the use of your money; write off your expenses through your business  including depreciation, taxes, insurance, repairs, etc to maximize your tax deductions.