Assuming the property manager asked for the $900 in writing specifically for junk removal, this could be considered fraudulent use of funds.

You can also combat the risk of vacancy as you purchase more doors. 

As far as an income requirement for your rental, I recommend setting a standard that you follow in order to help combat any potential fair housing issues. 

I keep my funds that I would be putting toward a real estate deal in the S&P 500 and gold markets to combat inflation but also to keep it on the safer side.

They are either terrible, non-existent, or just straight up fraudulent. 

It also seems like it is equally as likely that they are bad at record keeping as they are being fraudulent, or maybe more likely that the record keeping is bad. 

If you partner with someone that is reluctant, combative, or unable to consider your viewpoint it will be harder to be successful.

It has been a steep learning curve, but we kept bouncing back and learning new strategies to combat any obstacles we faced.

Also there's ways to combat this issue by buying properties which are already rehabbed.

The government, through multiple extensions of an ill-considered blanket policy purportedly used to combat the spread of a deadly disease and now largely without merit, is absolutely encouraging this bad behavior on the tenant's part.