For the precise rules in your state, consult the website of the state agency that handles business filings. 

Precisely, it will not hurt you to accept this request, yet it might help you in the future. 

I have access to mls when I need to crunch more precise data, but I use the Zillow app on my I pad when I am looking at houses, to get me a quick synopsis of what a neighborhood looks like, and to get me close.If you use the "yellow houses" those are solds they are reliable comps to use to determine arv.

However I quickly learned and no longer use tape unless I'm painting something extremely precise (e.g. around windows and mirrors).

With better details and more precise numbers people can probably give you a better sense for how to structure things.  

Or the more precise way of doing the math, if you add in vacancy, repairs, and capital expenditures, and property management you will likely be above $900.

The high growth rates that worked over the past 3-5 years might not work in the coming few years.Great saying I heard which helps me: "It's better to be approximately right than precisely wrong."

@Thomas Hickey Precisely!  

My mentor just told me he heard of a case, where the judge NAILED the landlord over not paying interest 0.78 to be precise, so security deposits IMO if nothing big is damaged and there's no proof, are worth more hassle than needed as far as giving them itemized lists.. if it's a legit problem and  you have proof, I'm all for it...    

While you would think most applicants are polite on the phone I find that a high percent make statements that disqualify them.I think whether or not you expose yourself to being sues revolves around whether or not you have a precise set of rules you use that you apply when reviewing each applicant.