It will go from serving you to serving themselves. 

Like a good chef who can take any cut of beef and serve it up in unlimited numbers of ways, a good investor should be able to utilize and possibly spread around any of those house parts to find a solution. 

Appliances- $2kGranite counters- $2k-$2500Upstairs carpet- $1kLaundry flooring- $250Kitcdhn flooring- $500Window- $200Yard work- $200-300These prices include installation and are only a rough guess as I don't know your size of your areas and all that.

You have to compare size, condition, specific neighborhood and street, to get an idea if it's a good deal. 

Size, type (sfr, condo,) price, possible rent amount, condition, etc.

In senior communities many purchasers will want the homes to be in move-in ready shape, as opposed to handyman specials.With all of this said if the homes are good sizes (ideally 14 feet wide and good sized bedrooms) and do not need more than a few thousand dollars in work, then they may be good opportunities to purchase and resell.

Tend to be very intensive properties, have crappy financing, and the sellers books are generally not good at that deal size.  

. -- "Provide real estate brokerage services" means to engage in any of the following activities: (1) for consideration, providing any of the following services for another person: (i) selling, buying, exchanging, or leasing any real estate; or (ii) collecting rent for the use of any real estate; (2) for consideration, assisting another person to locate or obtain for purchase or lease any residential real estate; (3) engaging regularly in a business of dealing in real estate or leases or options on real estate; (4) engaging in a business the primary purpose of which is promoting the sale of real estate through a listing in a publication issued primarily for the promotion of real estate sales; (5) engaging in a business that subdivides land that is located in any state and sells the divided lots; or (6) for consideration, serving as a consultant regarding any activity set forth in items (1) through (5) of this subsection.

$20 to $50 / month around here depending on size.  

I don't have a large enough sample size to use my numbers as gospel.