I'm sure there will be one person with a perfect scenario including an unreasonably low LTV that will disagree, but I don't believe your asking for what is the lowest they can go in a perfect situation, but rather what is a realistic rate you can expect in the future and 7% is a realistic low end. 

Now she complained the issue of toilet fill valve which caused unreasonable high water bill and claimed it belongs to wear and tear and a plumbing issue.

It's not just the laws are unfriendly and unreasonable.

Much of what RE was saying was about when to get information, and his statement was not unreasonable, it appeared to me that some thought it was not important that info could be given later on, and it can, but the Ap. may need to zap someone for an additional fee as it ideally should be given at the time of ordering it or shrtly thereafter, not after the work has been done.

If they’re being unreasonable, I’d only do what’s required, even if that’s just prorated rent which wouldn’t cover a hotel.

A few PHAs will deny rent increases when they're submitted if they feel they are unreasonable for the area, so YMMV.

I agree with your tenant that it sounds unreasonable.2.

For example, a $1000 fine for using the elevator to move furniture would be completely unreasonable in a unit where prices are $150,000.

Condo fees are unpredictable, condo boards are unreliable and sometimes unreasonable.

A lot of buyer's agents will simply try to avoid showing a FSBO because FSBO sellers are notoriously unreasonable and difficult to work with.