You will find a very helpful guide [linked removed]. Also, contact the guides author about consulting with your startup. Good luck! This post was edited to remove a link. Please review our Community Best Practices for more information about how best to participate in our online discussions. Thank you.

You need to register your name and entity type (partnership in this case)
with your state agency that handles such matters. Then, you will need to have
an attorney create a legal partnership agreement detailing the operation of
the business. You may also need a sales tax permit and a business license,
which is issued by your city.

Visiting with a counselor at a small business development center or SCORE
office would also be helpful. Their services are free and they can provide
much information about how to get started.

You may want to start by checking out an SBA research partner: SCORE, Small Business Development Centers. Here you will be provided with free business counseling and training. To find your nearest SBA resounce partner, enter your zip code at SBA Direct. I hope this is helpful in getting your handyman business started!