Since the LLC for a rental is predominantly used for asset protection, we always refer out to attorneys to form the entity.

I recommend adding "Personal Injury Liability" endorsement to the policy (protects against Liable, Slander, Wrongful entry, ...). 

To protect yourself from big losses you should value the park based on the portion of rent that can be allocated to lot rent and if you have to value the homes then value those based on shell value or what you can comfortably sell them for. 

Of course rate and terms are something to consider but knowing they can perform/close and protect your reputation in the process is key.

Bad strategy as waste of time and could lead to mugging.2) Are the plumber, electrician and handyman properly insured to protect you if they get injured on your property or injure a tenant?

This would mainly protect them against tenant slip & fall lawsuits.Agree with everyone else above that they should not be asking you to provide workman's comp insurance - that is their problem.

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it.We have a 12 page management contract that we've added our real experiences to over the years, with the intent of protecting both us AND the landlord.

You may want to consider other deed types so that you get greater assurance/protection of clean Title and a Title Insurance policy.  

I have already done everything to get my business set up legally and protected.  

Most sophisticated investors use an LLC when they acquire assets to protect themselves against any liabilities.