purchasing a home with a unfinished shop (possible rental)

[Cristal Sanchez]

hello BP

I am considering writing up an offer on my first home tomorrow that has a shop  which has been set up for extra living quarters but is unfinished (also zoned light commercial). I had a contractor come out and look at it and he estimated that for insulation, some leak repairs,an extra wall and drywall I'd be looking at 15k give or take. I'm thinking maybe closer to 20??? My sister would want to live there for the next two years while she saves up for her first home so I figure the cost to finish up the shop would pay for itself and in a few years provide extra income for me by continuing to rent it out or I can use it for my real estate business. The permits have expired, so I also need to look up the cost of renewing them. I also need to find out if I need new permits for renting it out or if I can even do that? Any advice is much appreciated :)

Also if you know of any reasonable contractors in the vancouver wa area, for different opinions, please send their contact info my way! 

 Thanks! 

Cristal