If you are US based, there are some nonprofit organizations that can help you connect with the right people. Two off the top of my head are: SCORE (https://www.score.org/) and SBDC (http://americassbdc.org/).

Uncle Sam loves small business because they help build roads and stuff so this advice is all free.

As far as financial support goes - I would wager you have at least some cash flow from being in the business for 14 years. This puts you in a better position than most start ups as you can fairly easily get a loan or line of credit from a bank.

You definitely want to iron out a rock solid business plan and know where every dollar is going to go before taking money because it will be against the business. SCORE, SBDC or even your friendly neighborhood clarity expert should be able to point you in the right direction if not get you a concrete plan entirely.

Feel free to shoot me a message if you have any questions.