Client/Contact/Campaign Filemaker Database Help

I am starting a new small business and need a program that I can go to for all of my client/campaign management and contact management. I have a medium amount of Filemaker knowledge, but not enough to complete what I'm trying to do. I started trying to build what I need using FM_Starting Point and it has a lot of features that I need, but some need to be customized to a point that I lack understanding of. I'm willing to pay a decent amount to have someone be my go-to person to add the features that I need in order to get started and someone I can always go back to if I have additional features that I need added.