Aside from your local or state laws I would imagine 30 or 60 days notice is sufficient.

Hey all,I have a short term rental that sleeps 6 people and has a small courtyard with a fence.

No one wants to pay higher HOA fees but if the fees are too low then the board will not have sufficient funds for preventative maintenance. 

Conflicted on whether I should sit down with a lawyer to draft a lease, or if Zillow's basic lease is sufficient? 

The dollar you spend on ADU will be sufficient for the down payment of SFH in south or midwest.

Needs some work on some of the sleeping spaces.

By rich I mean they completed an application, paid the screening fee and we show that their income is sufficient to cover all of their own expenses plus pay for rent and any damages at the unit we are renting their child.

Our short term rental (airbnb) is a little more exciting but causes me more lost sleep due to seasonal fluctuations.Consider your risk tolerance, try a little of a few strategies and figure out what you like.

Your water heater is sufficient for one person but most sites I've seen would say it is undersized for  2+ people which would be normal in a 2BR apartment.Instead of adding a new hot water heater, another option might be to add a parallel 20-gallon heater. 

While the latter may seem more economical, it's only viable if your property has sufficient space for a new leach field.