Birthday Wishes for Sister-in-Law

Were found 50 happy birthday messages:

I am so lucky to have you as a sister-in-law. Thank you for always treating me like a friend, rather than as an in-law. Happy birthday!
The most fabulous sister-in-law
So much more than just a sister-in-law
Happy birthday, my dear
sweet sister-in-law!

I truly believe that we would
have a very special bond and
a strong friendship had we just
met randomly as friends, but
the fact you married my brother
making us family is even better
than I could’ve ever imagined,
as now I get to call you my sister!

Enjoy your special day, and may
your heart always be filled with
happiness and love!
A wonderful addition to our family
You’ve always been my sister
Today we are celebrating your birthday,
my dear sister-in-law!

I hope you have a fabulous day because
you really do deserve it!

I admire you and everything you stand for
so much, and I know everyone else in the
family feels that way too.

So for all of this, I want to thank you for
not only being a wonderful sister-in-law
but a great friend too.

I wish you but eternal happiness, my dear!
To my kind, sweet, and thoughtful 
sister-in-law on your special day, 
I’m sending only the greatest 
birthday wishes your way. 

May this joyous occasion be
as special as you are to me, 
overflowing with happiness,
endless laughter, and glee.
I’m wishing you the very happiest birthday today, sis!

The day that you officially became my sister-in-law was a particularly special and happy day but truth be told, you had touched my heart and were already a sister to me long before then.

I hope that your special day today warms your heart just as you have mine.
Happy birthday to the prettiest, most stunning sister-in-law ever!

Your beauty is enchanting, my dear!
For a very dear and special sister-in-law, I’m sending the most special birthday wishes from the bottom of my heart today!

I hope that your special day this year brings you everything your kind heart desires, sweetie! Congratulations to you!
Happiest of birthdays to you, sis!

It’s so wonderful to be able to call you
sister, but really the truth is that even
before you were my sister-in-law, you
were already a good friend to me and
a dear sister at heart.
However much we see each other as the years pass, know that I cherish our moments together and you’ll always be a very special sister-in-law to me. Happy birthday, dear.
Here’s to a fab sister-in-law, hoping you have the most wonderful birthday ever!
Congratulations are in order for you
today, sis, as it's your birthday!

Having a sister-in-law like you truly is a
blessing as you are the kindest, sweetest,
and most thoughtful person I know.

May you enjoy your special day to the
max today, my dear.
It’s a happy day, it’s a day for celebration, for my lovely sister-in-law is adding another year onto her life. Have a joyous birthday, sweetie!
Happy birthday to you!

Having you as a sister-in-law is wonderful in itself, but also having you as a friend is beyond incredible. I’m certainly very blessed.
Dear sister-in-law, your birthday is the perfect day to say to you that you are the sister I never had.

You are everything I always wished for in a sister and so much more. You give the best advice, bake the best cake and always have a hug and a smile for me.

I hope you have the most amazing birthday in the world!
The most heartfelt birthday wishes to my favorite extended relative, my sister-in-law. The day I married your brother I didn’t think I would be gaining a sister, but I gained that and more. I gained a friend for life.

Happy birthday!