We are thinking of rewiring to add an outlet for the garage.Electric will be in tenants name. 

I just went this last Thursday for my first time and met several Wholesellers that might help you out. Let

@Nathan G.Thanks for reaching out! Let

This will allow for unexpected cost overruns and appraisal coming in lower than expected.  

Again....all that needed to be done was push the GFCI reset button on the GFCI outlet. 

But sometimes I am limited in what I can do in a flip due to constrained budgets or unexpected expenses that we didn't catch when we originally bought the house.3)Our first 6 flips that we did as soon as the 1st showing happened we were made a offer.

Wow this question is so vague I have no idea how to give specifics...On a 10' x 10' room (similar to your standard bedroom) I can remove everything down to the studs in one day.1/2- 3/4 day to rewire (simple cosmetic such as changing the number or location of outlets if you're actually changing the wires itself up to higher codes it can be 3+ days depending on how the house is wired and accessibility)1/2-1 day to insulate1/4 day for any windows or doors that would need replacing for the 1 room2 days for drywall (so long as the studs are straight and level)25 hours of taping (+/- 5 hours depending on the number of corners/edges) spread over 7 days usually front loaded 3-4 hours the first 2 days, then 2-3 hours for the remaining 5 days.2 days painting; 2-3 coatsflooring will depend on the product you're using but unless it's hardwood or laminate you can usually get it done 1 day.1 day trim and molding1 day clean and finishing touches.One thing that shouldn't be overlooked is the time it takes to purchase the materials and get them to the job site.Another is where you can actually do the work.

When you look at all the expenses, including vacancies, unexpected repairs, etc. will it make you enough that you think it will be a good investment?

However, I know there are always unexpected pitfalls, and there are people on here far more experienced than myself in the realm of investing.

However, I do agree with you that if you do not have a solid income vacancies and unexpected repairs can be a major issue.