You should have a general understanding of what pets you will allow, what you will charge, pet rules, penalties for violations (sneaking in additional pets), etc.

ALWAYS do your own research on comparables, rent amounts, building codes and violations.

If you see someone violating the rules, create a post with "@moderators" and we will receive a notification and respond.Again, welcome to BiggerPockets and happy investing!

You've probably heard of big Landlords losing property, but only because they were flagrantly violating Fair Housing, running a slum, or otherwise violating the law in an egregious manner.

Side deals are a direct violation of both the landlords and the tenant's contract with HUD.https://www.biggerpockets.com/blogs/9232/55313-intro-to-section-8---your-perceptions-vs-my-realities

You would be violating the law for doing that.Be comforted that most prospective residents don't provide proper ESA documentation. 

I told them I have gone to many Airbnb’s where free parking is not included and they actually told me that those places are also in violation.

In my location, if a window doesn't stay up on it's own that would be a safety violation. 

As with any type of investment, investors should list the estimated costs to calculate their potential profit.Costs to consider on fix-and-flipsRepairs (always be conservative)Carrying costs (interest, points)Monthly costs (utilities, HOAs, insurance, taxes)Buying costs (back taxes, cash for keys, liens, code violations)Selling costs (commissions, closing costs, transfer fees, title insurance)Unexpected costs (add $5,000 to be safe)These are the basic costs investors should consider.

I requested via certified mail that my security deposit be returned, but he said that it was forfeited due to a clause in the lease that said it was forfeited if any provision of the lease was violated, in this case not staying the final month.