A lot of times that dollar is going back into your pocket via a retirement account or as prepaid supplies, etc. but it's still unavailable to you for a period of time. 

Roughly 43 million American households have opted to rent rather than buy their homes because of convenience, cost or both." and "demand for affordable housing exceeding supply, more than one-quarter of all renters – 11.1 million people in total – spend more than 50 percent of their income on housing.

The biggest headwind the industry faces is over supply.  

If the  homeowner is actually interested in selling to you then he would probably supply you with the information that you’re looking for. 

Im not sure its all FoxxCon. in my market, my own homes ARV Has risen dramatically, I purchased in December for $110K (needed $20K rehab) with ARV of $170K today I could list at $199K and possibly have it bid above that, supply is tight in many markets, and in my opinion we may be on the cusp of the Euphoria segment of the cycle hitting is in spring of next year, Projections I have read from WRA and Zillow show expected price appreciation in my market north of 9% by this time next year.

I would love to know some better sources for inexpensive doors, cabinets, and other supplies.

I'd like to know what utility bills are mandatory(for the landlord to pay), are there appliances that are mandatory to supply.

Seems to be an almost unlimited supply. 

If they have it in more detail and if they can supply that easily to give it to you and why.I would say it is more important to know your plans more so than how they did in the past beyond one year. 

Something that's not mentioned on this forum much though- watch out for midwestern markets that cash flow well w/ respect to price:rent ratio, but have an excess of rental housing supply relative to the tenant pool.