If her bill is unreasonably high, maybe the tenant can pay for any amount exceeding a reasonable rate, but this may be tricky if this wasn't explicitly determined.As for the plumbing issue, I'm guessing the tenant would only be responsible for a charge to snake the line (or possibly hydro jet) and any additional water damaged caused from the clog. 

You know when I started, I called some guy at Jet Lending and he sent me over their excel spreadsheet calculator. 

One time we had a raccoon family push through the chinking in our log cabin and ended up behind a jetted tub in a weird empty space.

I got 70% and 100% from Jet with 8.9% rate and 3 points as recently as October.

.$450 seems high for cleaning a line, that is hydrojet main sewer line cost territory in my area.

•Suite feature oversized ADA Accessible bathrooms including a jetted tub and walk-in rain showe with grab bars. • Comfortable yet contemporary decor blends custom Italian designs in a palette of taupe, cappuccino and azure. • The sleeping area features a King Size bed and set off from the main living area by a chic bamboo curtain. • Outlets/switches/thermostat at wheelchair reach, FA strobe/horn devices, Wheelchair accessible door peepholes • A pullout sleeper sofa in the living room ensures that this suite can comfortably accommodate up to four guests.

They didn’t even start with space shuttles or jets or airplanes.

A plumber estimated the job and specified Neptune T-10 Hydro Water Meter.

Jet, tell them that the application fee is deducted from their first month's rent if they are accepted.Usually, they are stopped by the application fee becasue they know they won't qualify.

Jet,Here are a few books that I have found useful and enjoyed.