Then if the LL agrees to the LOI terms you’d draft the official lease agreement that includes all of those terms for due diligence, feasibility, permitting, construction, rent commencement date, etc. 

You'll find some heavy hesitation on most lenders if it hasn't been planned/permitted because of the delays that those things are prone to have.

Who is typically responsible for obtaining building permits, the property owner or the general contractor?

Huge supply for the demand we have... and supply is still growing.In Hurricane it is a little different because, outside of the PUD communities, they only have 48 permits.

San Diego flood victims are being provided permit amnesty so that previously unpermitted work can be rebuilt.It is interesting that if your property has unpermitted work, the city is providing amnesty so that the property can be rebuilt as it was prior to the flood.  

It is rare that municipalities permit new mobile home communities and financially, unless you have extremely deep pockets, buying a existing community with cash flow is preferred since a new community with no homes and no tenants will take many years to come close to even breaking even from lot rents.  

Know your local zoning laws, building codes, and licensing/permitting regulations.2. 

He directed me to the City to have the building address added to receive mail and for this I would have to apply with the City for having an additional unit constructed (i.e. applications, permits, etc.) as mail can only be delivered to a dwelling (rather than a building).

If you are this close to the border or cost you need to purchase through a corporation or through a bank trust (Fideicomiso - Think of this trust to be similar to an inheritance trust or a living family trust in the US.)At all times you are the legal owner of the property, the best way to see it is as a permit or license that allows you to purchase, use, enjoy, rent, renovate, inherit, etc. a property in this zone.

This change permits owners of IRAs who are 70 and a half or older to transfer up to $105,000 in 2024 from their IRAs directly to a qualified charity and avoid income tax on those amounts.