This would not be the case of an extra 4000 gallons per day, likely only a few hundred gallons.

I know you have been here a long time and thank you for being a good tenant but on X date we will need you to vacate (maybe use chatgpt on it) to soften it more.Key is, give them a date but give yourself some extra time just in case. 

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!

I know NY lenders that can do 100% LTV helocs which might give you that extra flexibility.

If you are not familiar with lease applications/procedure/ and contracts, use a realtor to make sure you don't leave anything  out that can come back and burn you.

Compare yourself to these but do something extra to make it stand out.

These days, even properties with nice amenities like pools need to go the extra mile to capture attention and bookings.

Have an owner's closet, where you lock up your extra inventory so the guests can't use it. 

Not sure if that is the case for you or if you are worried about burnout but if not, I would continue making extra as a nurse which will help with getting you approved based on income for future homes. 

It’s always good to have an extra bedroom if possible, as it can attract more tenants or allow for house-hacking opportunities.