I would say that you need to determine (in no particular order) regulations on rehabbing, sewer/tap condition, asbestos, mold, whether you're in a historical location or not, landlord/tenant laws, gas line condition, etc... all those things can be detrimental to your expense line.Hope this helps a bit. 

That is the historical average for the Denver market over the last 40-years.

I am in the process of buying a double brick triplex built in early 1900's (southern Virginia/historic district), 1650 square feet 2 bed/1 bath units stacked on top of each other.

If you have historical rents at $750 and a purchase price of $42,500 on a renovated house (meaning I'm assuming it's finance worthy and rental ready), I'm a little curious why you wouldn't leverage it right off the bat?   

Great historical data and easily prints everything out as a CSV file so you can analyze it.

Purchase price: $70,000 Cash invested: $20,000 Sale price: $185,000 Live-in flip of historical house What made you interested in investing in this type of deal?

General contractors who do good work are busy, and they do not give a damn about your "proposed" or "desired" timeline unless you're a bigshot with a historic track record of throwing them multiple $250k jobs per year (oh, and GCs completely ignore "but I'll send you my future business!"

Louis area is super local and when I say that, I mean there can be falling down crack houses 5 blocks from $400k+ historical rehabs so when you run comps online, if you don't know where those dividing lines are, you can get into trouble. 

What are is the historical occupancy rate?

However I do know  historically Iowa has been a tricky state to navigate. https://whotv.com/2015/07/15/squatting-case-may-le...It looks like you live in Des Moines.