DISTINCT Conflicting with my query

I need p.phonenumber in there but then it messes up my DISTINCT ON m.number because I end up with dup m.numbers if I run just the inner select statement during testing.
But then I need the phonenumber in that subquery so that I can do list.phonenumber
ahh!

UPDATE Master

SET master.homephone = list.phonenumber

FROM MASTER m

INNER JOIN

(SELECT DISTINCT p.number, topphone.phonenumber

FROM phones p

INNER JOIN (SELECT top 1 phonenumber from phones) as topphone ON topphone.number = p.number

WHERE p.phonetypeID = 1

AND ISNULL(p.good, 0) <> 0

AND LEN(p.phonenumber) = 10

) AS list ON m.Number = list.Number

WHERE m.homephone IS NULL OR m.homephone = ''

Error:
Msg 156, Level 15, State 1, Procedure Skiaa, Line 66
Incorrect syntax near the keyword 'top'.
Msg 156, Level 15, State 1, Procedure Skiaa, Line 88
Incorrect syntax near the keyword 'top'.
I want to update m.homephone with the p.phonenumber based in the filtering critiria I have specified but this simple task is turning out to be a pain.

Without actually trying to recreate the tables on my local server, I'll try to answer this. This is assuming it's actually something wrong with evaluating the top function within your derived table structure.

Anyway, try something like this instead...

UPDATE Master

SET master.homephone = list.phonenumber

FROM MASTER m

INNER JOIN

(SELECT DISTINCT p.number, topphone.phonenumber

FROM phones p

WHEREp.phonetypeID = 1

AND ISNULL(p.good, 0) <> 0

AND LEN(p.phonenumber) = 10

AND p.number = (SELECT TOP 1 phonenumber from phones)

) AS list ON m.Number = list.Number

WHERE m.homephone IS NULL OR m.homephone = ''

OR...

DECLARE @.max_phone NVARCHAR(100)
SET @.max_phone = (SELECT TOP 1 phonenumber from phones)

UPDATE Master

SET master.homephone = list.phonenumber

FROM MASTER m

INNER JOIN

(SELECT DISTINCT p.number, topphone.phonenumber

FROM phones p

WHEREp.phonetypeID = 1

AND ISNULL(p.good, 0) <> 0

AND LEN(p.phonenumber) = 10

AND p.number = @.max_phone) AS list ON m.Number = list.Number

WHERE m.homephone IS NULL OR m.homephone = ''