It needs a LOT of work/complete gut - central air would need to be installed, needs a new roof, all new windows, new flooring, new kitchen, new baths, extensive drywall repair, etc etc.

The kitchen and bathrooms were a different story and a real mouse paradise.Most items were without real value like tons of Christmas decoration from the 90s still packaged and with the label for $5.

Just make sure everything is individually wrapped.Furnish the kitchen with dishwasher-safe everything.

Focus on the main areas that sell the house: Kitchen & Master Bath.

I have installed a dishwasher in the kitchen (where none existed before) AND I had an egress window installed by a contractor in the basement (in the 'family room' area) and currently am using this extra room as a bedroom for my boys.

Like we did with the rest of the house we spent serious money renovating and improving the addition,   with the intentions to rent it as a separate unit with separate entrance while we lived in the original 3/2 floor plan.Where the issues lies, the kitchen in the granny flat is unpermitted the lot is zoned for SFR, there is a handful of other unpermitted, not to current code or plan issues throughout the 60 y.o. house, mostly before the purchased the home. 

I recently did a rehab/flip and we had a kitchen drawer cover that was still missing at the time of the offer (it had to be custom built and was taking a little bit of time).

I use VCT in kitchens and baths when I replace the flooring because it lasts way longer.

all kinds of new stuff; water well, floors, kitchen, furnace, A/C, and some other stuff.

.)* Refaced kitchen cabinets and vanity; new counter tops, sinks and faucets ($5,000)* Ceramic tile in kitchen, bath and hallway ($1,000)* New carpet throughout ($3,000)For a total of $12,000.