Can a friend meet the proof of funds requirement for a METV by being added to someone else's bank account?

Which US Thai Consulate is he using?

Los Angeles requires $7,000 bank balance for 6 months...

But Chicago says different...

One copy of applicant’s recent bank statement or evidence of adequate finance (minimum of US$7,000).

Multiple Entry Tourist Visa (METV)

• Must be a U.S. citizen or U.S. Permanent Resident for the Multiple Entry Tourist Visa (METV).

• Your actual Passport or Travel Document.

(Passport or Travel Document must not expire within 6 months and contain at least ONE completely empty visa page) - include a copy of "picture-page" of the passport.

• Visa application form [ Download ] (all sections must be completed including proposed address in Thailand).

• Two passport photos (2” x 2”) color, front-view, taken within 6 months.

• One copy of U.S. permanent resident alien card or a copy of valid US visa with employment verification/ letter proof of full-time student status.

• One copy of airline tickets or itinerary showing confirmed flights - tickets should show multiple entries.

• One copy of applicant’s recent bank statement or evidence of adequate finance (minimum of US$7,000).

• Employment Verification Letter.

• Copy of hotel reservation.

• Fee is $200.00 (Money Order or Cashier's Check - payable to "Royal Thai Consulate-General, Chicago").

7000 $ every month?

The other bank account if it worked would probably require $14,000 if it's two people

The Thai way of looking to bank accounts is very simple, The balance is divided by the account holders.