Non-imm O, based on Volunteering - extension possible?

[SnackmasterB]

Greetings everyone, was wondering if anyone could help me: 

 

I have a Non-Immigrant O visa, single-entry, based on volunteering. 

 

My Non O visa expiry date says 24 Jan 2017.

My stamp from Chiang Mai Airport upon entry says "Admitted until 31 Jan 2017" (I landed/entered on 3 Nov 2016)

 

1) Is it possible to get an extension on this type of non-imm O visa?

2) If an extension is not possible, do I have until the 24th or 31st to leave the country?

3) Can I make a land border crossing at Mae Sai and go into Burma for the day and receive a 30 day visa exempt stamp (that is extendable by 30 days at the end if I so wish?) Or is flight in/out the preferred option?

 

Thank you in advance for any insights.

 

D

[ubonjoe]

1. A extension is possible if you have a work permit and supporting documents from the organization you are working with.

2. January 31st.

3. Mae Sai does not allow a crossing for for a new visa exempt entry. The nearest crossing that allows them is the Chiang Khong crossing to Laos.

[SnackmasterB]

Thank you for your help, Ubonjoe. Very much appreciated :)