So the question is with the entrance - kitchen floor, it has a patch in the hallway and even if we do not want to, we need to change it in order to be able to sell.

If you don't want to knock the wall down I would widen the entrances to create more of an open feel.

Federal regulations have been written that give consistent and concrete direction to home and commercial builders on construction of accessible buildings and units.The seven basic requirements of fair and accessible housing are:An accessible building entrance on an accessible route.Accessible public and common use areas.Usable doors (usable by a person in a wheelchair).Accessible route into and through the dwelling unit.Light switches, electrical outlets, thermostats and other environmental controls in accessible locations.Reinforced walls in bathrooms for later installation of grab bars.Usable kitchens and bathrooms.- See more at: http://autismnow.org/articles/reasonable-accommodations-and-accessibility-in-housing/#sthash.eHAZrjM4.dpuf

One home we saw is 4,000sq/ft beautiful Victorian style on a few acres with a 900sq/ft in-law suit with all new appliances, hardwood and private entrance. 

Without his help we would lose those advantages.Also my wife and I plan to find a home with a basement and separate entrance that we can rent like an apartment. 

Another issue is broken concrete pathway to the entrance.  

In Portland, an ADU is typically a separate building (like a garage with a "mother in law above" it), but can also be a finished basement with a separate entrance.  

*0-5% entrance cost as personals- who doesn't like buying stock at 5% of the value and having someone else pay it off*tax haven- our margins are small enough that we have a small profit, no profit or a small book loss*someone else paying off our mortgages + dividend- in stocks you can't have someone else pay the price.*1031 exchange- the ability to continuously upgrade and reinvest your property without paying property tax*cash flow- real estate produces stable dividends that you can directly control*control- I can control real estate I can't stocks, bonds etc*higher returns- class a properties produce us between 15-25% retune on our down payment Cons*price fluctuation*repair costs- dealing with handyman, currently looking for a new handyman as the one I thought I found in charleston is charging $200 an hour*dealing with tenants- they are your customers so it's important to Toe the line

@Eric Munson The hallway/staircase in the pictures is not a common area, it is a staircase through the back entrance going from the ground level to the 2nd floor unit.

Can't say I am too happy about the fact that someone decided it would be a good idea to include an entrance on my street(a small and fairly narrow residential street which does not need additional traffic).