One of the sites I love to help is municode.com as it has a great library of ordinances for various jurisdictions.$15-$20k per space is not unusual costs from raw land to finished spaces. 

and repeating the process with worst case numbers.The premise behind the Monte Carlo approach is to assign each variable in your model a probability distribution and then letting your PC run 10K scenarios where it picks a random value for each of your variables based on your probability distribution that you assigned and records the result. 

CHBO / Corporate Housing by Owner has a CHBO Complete checklist that you can get for free when you register all the information is in the resource library. 

Offline community papers, shopper magazines, make flyers & put them in libraries, barber shops, LAUNDRAMATS, anywhere with high traffic! 

In PC/Bavaro ( Punta Cana) the rental market is great you can rent a 2/1 for about $250USD on the low end and up.

check out OZToolkit.com there is a whitepaper in the resource library on this exact topic 

And before I get a bunch of back-lash for not being patriotic or PC....I am a veteran.

Laura,Tons of forums on this topic on BP (try searches on "screening", etc)...People will and have chimed in with their process and recipe....Also, you may want to also look broadly at the renting and tenant onboarding process (I have a few classic buy and hold landlording books on a blog post, all should be free at library or low cost at used bookstore).....Best of luck!

All older books you could find in library or cheap used and with a more practical bent....And there are more ideas in the forums, podcasts, etc, here on BP.

Depending upon which computer you're using {Mac, Pc} its level {XP, Vista, 2000, Win/7, Win/8 and now Win/10} the IE browser is a Law Unto Itself.