To spot a timeshare resale scam, consider the following tips:

1. Unrealistic Promises: Be skeptical of companies that guarantee a quick sale or an excessively high price for your timeshare. Such promises are often too good to be true. Research market values and be realistic about the potential resale value.

2. High-pressure Tactics: Scammers may use aggressive sales tactics to pressure you into making immediate decisions. Take your time, do thorough research, and don't let anyone rush you into a hasty agreement.

3. Lack of Transparency: Legitimate resale companies should be transparent about their processes, fees, and potential risks. If a company avoids answering your questions or provides vague information, it could be a sign of a scam.

4. Nonexistent Buyers: Some scams involve fake buyers to deceive timeshare owners. 

5.  Untraceable Forms Of Payment: Which Include wire transfers and MoneyPak's, If a company requests one of these types of payment, this is a red flag for timeshare fraud and you should walk away immediately. The problem with untraceable payments is that they cannot be refunded even if you are the victim of a timeshare scam.

Remember, while there are legitimate options in the timeshare resale market, it's essential to remain cautious to avoid falling victim to scams.