Tenants are on their best behavior before they get the keys.

View interactive map displaying SFR returns in all 375 counties analyzed.Rental yields decrease in 57 percent of marketsMedian sales prices for single family homes rose faster than average fair market rents in 213 of the 375 counties (57 percent), resulting in declining gross annual rental yields in the same percentage of counties.Counties with the declining gross annual rental yields included Los Angeles County, California; Cook County, Illinois, in the Chicago metro area; Maricopa County, Arizona in the Phoenix metro area; Miami-Dade County, Florida; and Queens County, New York.MethodologyFor this report, ATTOM Data Solutions looked at all U.S. counties with a population of 100,000 or more and with sufficient home price and rental rate data.

This is a very "sneaky" HOA and in my opinion borders on unethical behavior at times.

My advice to you is to learn the auction process, thoroughly read and understand all the terms and conditions, and don't allow the opening bid price or the behavior of other bidders determine what price you would pay for the property.  

Video of that put a spotlight on the concerns in the community about the behavior of student tenants. 

Give you the wherewithal to pursue and achieve your long-term goalsMany investors start off "too hot", and they either overdevelop their first property or they spend their money too fast - either of these behavior will stop you dead in your tracks, and you probably won't even be able to achieve your short-term goals - and you certainly won't have the resources to pursue your long-term goals.

It might be easiest to just upload it to YouTube and then embed it in a post here, or on the page where we'll display them!

the reason for that question is as i will display my field of work i think i shouldn't negotiate unless i intend to buy, or i can ask there bottom price?

A few things I have learned the hard way is common sense does not exist in landlording and once you let a behavior go or be nice, you usually can't come back.

I was given behavior by my tenant that I consider incongruent and the potential negative outcome of the scenario here is not something i wish to face without having seen it coming.