I imagine that M.A.Di. and other prefab companies comply with IBC regulations but every country, county, city, and township have their own codes and its important to check with local officials before building. 

Enforcing new park rules and regulations which is partly due to not having a property manager yet, which is a struggle itself. 

I wonder what is the major reason for the big push to regulate it.

Because the new buyer can not owner occupy the home that limits the buyer pool to investors only due to lending regulations.

@Ethan SpielvogelAs a general rule, you would want an LLC in the state where the property is located to be able to make any legal action in court (eviction for instance).However as some states have week asset protection statute (the charging order is not the sole remedy), you would then need to have this local LLC owned by another LLC in a strong state like WY.Now because you are located in CA, you are subject to the CA regulation that will force you to pay an expensive local franchise tax on your out of state LLC.

If the tanks are shot and there is no sanitary sewer nearby, you might not be able to put in new tanks because regulations have changed since it was originally built. 

Security deposits are usually strictly regulated, so know your landlord/tenant laws before discussing the deposit as that can usually come back to bite you later unless you can prove they owe that in damages or past rent.   

Overall occupancy is less than we originally thought and startup expenses were high, and there are new VAT regulations that are increasing prices across the board, but so far there have been enough bookings to offset all expenses.

Jeff Watson (the attorney for the National REIA) has some videos that he put together where he sat down with the regulators to discuss the topic.

I am also not entirely sure how this works does the tenant pay the full amount or do they pay their portion and the government send me a check as well?