Best to involve attorneys/lawyers as well, but it depends on the type of financing you get.  

It depends on the guy you get, but typically not a big deal.

My initial instinct is to wait for the results of these two efforts, as your asset protection efforts seem to depend on them.

SO depending on your situation that might be the case as well!

Depending on your financial status and the health of the LLC and investment it holds they may require a personal guarantee, which would also be you signing as your legal name.

In our experience you can get away with every 2-4 weeks depending on the weather and tenants. - Often, you can pay a tenant to do the cleaning.

They come with strings and fees so whether they are worth it depends upon whether you can live with the strings and have enough gain scale to justify the fees.I was looking at Delaware Statutory Trusts for similar reasons and opted not to go with them as most I've seen are incredibly inefficient due to massive internal fees which grind into dust much of the tax savings, so what would be the point. 

It is be difficult to answer in details on a post but I will give you some general info here as a guide:- The legal limit will depend on your location, layout of your house, and parking availability.

If you aren't doing it, you should use the average amount with the oil company based on other year's usage and they will average it so it's not $500 in one pop (depending how big these tanks are).

FULL STOP  Your ability to make such a profit will depend on your ability to manage the asset better than the prior owner.As a seller, the broker should be helping you determine the price point, at that time, that attracts enough buyers to achieve an optimal sales price.