hi, the current lead forwarders you are using are good till a certain time but i would say its a good move to generate leads yourself directly for generating long sustainable lead flow and to bring your brand in front of your potential audience that hasn't purchased from you yet.
anyway, so IMHO for CPA, we must promote you individually and build a personal brand around you and your accounting & financial expertise, instead of promoting your firm's name. because in such service business people pay you because they trust you, or they trust someone who have recommended you. so your individual expertises is what we have to sell.
we shall be using facebook, and LinkedIn (i would advise LinkedIn since you're into b2b) ad campaigning, and beside this we shall use your small daily use business and accountancy tips, tax planning tips, and new development announcements within Govt. shall be published as organic content posts. we shall also prepare content like your client case studies, your own interviews, your thoughts leadership to promote you on social.
i hope it does make sense to you.
can we have a chat on this sometime today or tomorrow?
Best, Gaurav