This is a great idea to mix up the usage of a multi family property to best meet your goals.

Give the owner of a local private security company free usage of a storage unit in exchange for their services.6.

I'm allowed 14 days of usage  at a property and I have three lots in town so I could theoretically do up to 42 days of rental.

I could go without a line upgrade if only one tankless unit of this type was installed.My question is this: should I size the system to support 100% usage on every hot water fixture in the building, knowing that it will probably never be used, or is 70-75% usage from a single heater going to be alright? 

The individual suing your company can only go after company assets if structured as an LLC, however if you comingle funds inappropriately, the opposite party can argue those funds are associated with the business, even if they came from a personal account. 

However, it has been our experience that many moms and pops price their property inappropriately so this formula is not always accurate.

These issues did not remove usage or functionality of the rental space. 

We are going to start billing new tenants for water usage (obviously by putting in the lease, units are individually metered).

Most of the 220 I see is for things like HVAC condensers and electric ovens and those are usually pulling 30 amps or more, which is going to account for more power usage than on a 15 or 20 amp 110.

If I received 10 different floor plans, in addition to the $500 fee I will also offer a one-week usage free of charge of my condo in Cancun Mexico.Let's have some fun.