61. Happy birthday dear brother in law. It is an absolute honor to have you as a part of our family. May God bless you today and tomorrow.
62. An occasion like this comes only once a year; make the most of it. Do whatever your heart desires. Happy birthday, brother-in-law.
63. I never know what to write in cards, I guess I’ll just wish you happy birthday and let you know that you are a wonderful brother-in-law.
64. I’m so glad that my sister picked someone chill to marry. Happy birthday and thanks for being a good guy.
65. Some people invite appreciation and trust; brother-in-law, you are one of them. Many happy returns of the day. We are blessed to have you as a part of our family.
66. Happy birthday brother-in-law, I hope this next year is even better than the last!
67. Dear brother-in-law, you inspire me to keep exploring new things. Have a fantastic birthday full of crazy new adventures.
68. Here’s hoping your birthday is filled with a bunch of good presents, a load of good food, and lots of good company!
69. Dear brother-in-law, you may be a year older today, but you are aging in reverse. You look more handsome each passing day. I wish you a perfect birthday.
70. On your birthday, I just wanted to say that you are the best thing that happened to my sister and I hope you have a wonderful birthday. It’s been great getting to know you over the years.
71. You have the power to add life to any boring party. Happy birthday to my entertaining brother-in-law.
72. My brother in law, you are an incredible person with a big heart. I wish you a great year of success and happiness. Happy birthday!
73. Here comes the day again when the most wonderful person turns a year older. Happy birthday, brother-in-law. Have the most amazing birthday filled with love, laughter, fun, and plenty of gifts.
74. We couldn’t be happier to have you as a part of the family. I hope you have a fantastic birthday.
75. Happy birthday, brother-in-law. May this year be the best one for you, and I hope you have many more amazing birthdays.
76. All of us in our family are very pleased to wish you a very happy birthday! May the Lord bless you and keep you.
77. May your day be filled with gifts, hugs, food, laughter, and love. May you continue to be a blessing to others. May you have a long and peaceful life. Happy birthday!
78. Congratulations on your birthday, brother-in-law. Hope a beautiful soul like you always has something to smile about.
79. Happy birthday to the best uncle and brother-in-law a family could ask for!
80. Thank you for being more like a brother than a brother-in-law. Have an amazing birthday. Cheers!