He has paid up to this point and your biggest problem is that he is unresponsive.

unresponsiveness from Seller's attorney.

He's unresponsive, and we have monthly reoccurring expenses as well as one-off expenses that I am getting stuck with. 

If you move on you will need to get this released.Thank you for this, Pretty difficult to get him to release a lien with someone being unresponsive.

Yeah I was planing on visiting myself, and yes one of the complaints I hear many people make is about their unresponsiveness, I've been looking for alternatives as well like you have but ultimately when it comes to quicker steel modular builds it seems they are reigning in that department locally.

I've networked, networked and networked and either find "buyers" unresponsive or scared to pull the trigger on any deals I bring them.

The tenant swore there was mold so we came out and found no visible mold however we did treat the surface areas with a spray product sold at Home Depot called "Concrobium" then we followed it up with treating the walls with Hydrogen peroxide. of course this was to ensure that the tenant could not say we were unresponsive which is also why we made a video while on site showing no mold.It was a relatively cheap way of responding and in the end the tenant later confessed that she simply needed to break her lease.

Now the sellers are unresponsive and this is holding up the closing.

So it's no easy task getting these homes pry'd out from unresponsive owners or lien holders until they are ready to list.I actually do believe there is going to be a recognizable drop in 300+ homes value and demand but the entry level, rentable, first time home buyer homes will ALWAYS sell if priced properly.

If he does agree or is unresponsive then file court papers.