The guy I have right now does pretty decent work but is unreliable and takes far too long. 

This is so important.4- Some platforms let you build pages, some let you build landing pages which are really just web pages that are designed for specific keyword phrases and sometimes don't include navigation menus to keep your leads from clicking to another page on your website.

@Will Boller, in a quick click around on Interval International's website (https://www.intervalworld.com/web/my/home) a major exchange for timeshare properties, it seems like it is 50/50 from my small sample looking at properties in the northeast USA, with a handful allowing Sunday weekly check-ins too.Granted, this exchange is not an Airbnb, but it is all weekly stays in condos run, presumably, by large professional operators that have studied this business to maximize revenue.  

Not to get off topic here but I find many members of the BP community spend more money and time creating complexed webs of entities than my former employer who owned over a billion dollars worth of real estate.

Contact the nearest GSA office or search the web for how to rent to the fed.....

Just do a web search.  

I'm considering a pay-per-click strategy to drive traffic to a web form for homeowners who are interested in selling quickly and as-is.

I used to be a part time web developer and I know for a fact that a single like from an ad you posted online automatically becomes a lead. 

Fire your web programmer, as they are the ones to blame, not me.  

In my experience, most title agent are very familiar with seller financing and if they're unsure as to how to handle a particular situation they can always reach out to the insurer's underwriting department who I'm sure will be able to craft a solution.I just looked at FIG's web site and it appears they are a title agent for both Fidelity National and Old Republic Title.