@Chris Seveney I am not sure if you're hearing this more often than ever, but I hear similar stories weekly in about four markets I operate in.

Gut it out until the end of January with this person and either a) play more hard ball about the vehicle and other stuff b) play it softer and just gut it out with them2.

I know @Crystal Smith has experience with seller finance deals and may have some more insight or recommendations for you!

While there are amazing and awful people at every level of income, generally the lower the income, the more likely you are to have a rougher tenant. 

Have some more complex questions was hoping to get some help with:1.

If you have strong income and a busy job, you want to be careful not to bite off more than you can chew.

You want an accountant who can help you strategize and who is responsive when you want to know the consequences of the financial decisions you are making throughout the year.There are over 20 real estate accountants on this site.

Thanks for the very helpful answers!

I have found that over time the location and the terms are the most important things, the price is also important, but the location and terms are more important.How did you finance this deal?

Otherwise, hire a pro to help maintain it.