Short on detail, but I think it is going to be something like:

=MAX(DATE(YEAR(D2),MONTH(D2)+your_lookup,DAY(D2)), I2)

where your_lookup will be of the form:

VLOOKUP(A2,Sheet2!A2:B9,2,0)

This assumes the formula is in WS 1 - if not, then you'll need to
include the sheet reference with D2 and I2.

Hope this helps.

Pete

On Jan 18, 8:08*pm, SGT Buckeye wrote:
Please help. *Can this be done? *On WS 1, there is lookup criteria in
cell A2, a date in cell D2 and another date in cell I2. *On WS 2,
there is a table with the lookup criteria in cells A2 thru A9. *I
would like a formula to add the number of months from a cell in the
table on WS2 (vlookup) to the date in cells D2 and I2, compare the
two, and then return the date that is later.