I've been keeping track of Bigger Pockets for some time, and just now decided that I should start engaging the community.

@Chris Virgil-StoneGenerally the taxpayer who owns both the real estate asset being disposed and the replacement real estate asset must be the same.  1031 exchanges are easy to bust if you handle them the wrong way and don't have solid knowledge of the applicable code, regs, and case law.The questions you're asking are good and your thinking is on the right track, but they are advanced planning and structuring questions that are best directed to a tax professional you've engaged who can have the deep conversation with you and understand your facts, circumstances, and goals.

Second question from there... " An independent broker-sole proprietor must be a broker-in-charge to lawfully engage in most brokerage activities."

That will allow you to stay engaged with the property, move the needle, and give you the freedom to acquire more parks. 

@Selorm OclooHonestly I would save that money and instead educate yourself on a type of real estate investing you want to engage in.

(a) A real estate broker within the meaning of this part is also a person who engages as a principal in the business of making loans or buying from, selling to, or exchanging with the public, real property sales contracts or promissory notes secured directly or collaterally by liens on real property, or who makes agreements with the public for the collection of payments or for the performance of services in connection with real property sales contracts or promissory notes secured directly or collaterally by liens on real property.

Engage an attorney. 

I'd like to move those funds into an SDIRA (or Solo 401k, still not sure of the difference) and use them to engage in a different rei strategy - one that can offer a higher return than buy and hold, but likely doesn't carry the tax and leverage benefits. 

If a lender is part of the equation, as you may know, they will engage their own appraiser to handle this on their (and the buyer's) behalf.Beyond the above, to keep yourself out of trouble and to satisfy any lender involved and to provide the closing agent with what they need, if not using agents or an attorney, just pick a suitable title company to handle all the paper and the closing based on your completed/signed purchase contract. 

You would need to engage a licensed asbestos abatement contractor to abate asbestos.