I put my prejudice aside and was very pleasantly surprised by the interview. 

If they did it right and took care of the mold in time.

Easy answer: It depends. tldr: Worth it if you have the money AND the mentor is qualified and experienced to teach.Everyone pays to learn, either in time or money or a combination of both.

Tell her a new owner probably will want to move in that unit, and they can in time.

In Times Square where they are making insane amounts of money, they can afford to pay landlords 50% of revenue.

I see places in around the "pleasant street" area at good prices and hear talk of the neighborhood being revitalized, but have yet to see if that is really happening? 

However, in a quickly changing market, even 60 days may be too long.InventoryA property can have a short time to rent when there is a shortage of rental properties may take much longer to rent when there is a lot of inventory available.After RenovationIf the subject property is not in good condition, we typically choose comparables that are in a similar condition to the subject property after it has been renovated.The Process We Use to Determine Time-To-RentWe look for comparable properties that rented within the last 30 to 60 days within one mile of the subject property.We eliminate properties that have issues or are not actually comparable.We select or eliminate properties based on the after-renovation condition of the subject property.We generally stay in the size; generally ±15% of the subject property SF.For the segment we target, the lot size is not relevant as long as long as long as the lot size >3,000SFWe stay within ±5 years of the age of the subject property, if possible.We try compare single-story to single-story and two-story to two-story.Some Additional ThoughtsIf we find a significant variance in time to rent, it is likely that we did not select truly comparable properties.If a property takes longer to rent than expected, check the quality of its photos.

I just relocated to Charleston, SC (technically Mount Pleasant) and am looking to connect with others in the area.

Maybe the roommates will put pressure on her to move out and they will find a paying pleasant roommate. 

Chart out all the worst case scenarios and see how your contract can protect you in those scenarios .I know talking to Attorneys is not the most pleasant thing when you are paying 400 $/hr , but if the project is large scale or if you intend to do this on a regular basis , get the contract drafted by an attorney well versed in litigation/arbitration/mediation .I have been doing this exercise since the past 15 days  so if any one is in this phase of hiring a contractor , we could definitely bounce some ideas off