There's a lot of (probably inadvertent) negativity and gatekeeping here, and I would like to try to reset the conversation a little.
I *am* the sort of consultant you're looking for - my services include FCC filings, station brokerage and engineering, as well as sales for a radio automation software company. (And few of us are actually in DC anymore. We can do what we do from anywhere.)
Unlike what others here have said, most of us in roles like mine absolutely *do* want to be found easily, at least for a quick initial consultation. An important part of my business as a station broker is to try to expand the universe of potential station owners, in part so that the station sellers I work with can get the best deals possible for their stations.
The National Association of Media Brokers, of which I am a member, just met this week in Las Vegas and enjoyed an excellent presentation from the NAB's Broadcast Leadership Training program, which exists specifically to help would-be station owners get a toehold in the business.
So having said that, here are the questions I would start with if you emailed me for help:
What's the existing LPFM construction permit, and how long until it expires? At this point, anyone with an outstanding LPFM permit from the last window has less than a year to finish building it out.
As others have explained here, you can't just put up a taller tower for an LPFM. Beyond a certain limit (30 meters, but that's "above average terrain," not above ground), a height increase requires a power decrease. Either way, you get about 5-6 miles of decent coverage at the most. That's just the limitation of the LPFM service. And the choice of transmitter output power is determined by what's on your construction permit. It's also not something you can increase on a whim. In any case, a 30-watt rig won't be enough for you - and you need an FCC accepted model of transmitter, too.
If you want a service with greater coverage, and if you want to be a commercial operator, you need something other than an LPFM.
The good news is that there are lots of existing commercial stations for sale at prices as low as a few tens of thousands of dollars. But there's always a tradeoff. The less you spend buying a license, the more you're going to need to spend to improve whatever it is you're buying.
For less than $50,000, I can sell you a license for an AM station in a pretty big market. You'll get a transmitter and a little equipment with it, but you'll also need to relocate it to a new site. That's not impossible but it's not cheap, either. For $200,000, I can sell you a fully functional AM/FM combo in a nice small town, but you'll have to have a business plan to succeed the present owners and keep the sales that they've made personally over the years.
No matter what you're doing, you need a solid plan going in to understand all the expenses you need to be budgeting for. Music licensing, required equipment, engineering and maintenance, power bills - even for an LPFM, you need at least a few thousand dollars a month at the bare minimum. It's not an easy business to get started in, but many of us are ready to help if you're really in a position to take on the challenges.