The Pinto has little to no future collectible value so value and rents are not growing at near the pace of the Porsche.

Actually do a lease and charge, collect, and report market rent. 

Is there anything I can report to without collecting money from sites other than TenantCloud?

He pays a manager that works for him at his other business he owns 7% to collect rent and manage little stuff. 

Who pays water/sewer bill, garbage collection, any common area electric? 

Failed to collect Property Insurance and Property Tax on my promissory Note now buyer refusing to pay $15,000 delinquency on mortgage that is $709 per month @ 4% with $93,000 balance now pending foreclosure. 

The lender is friends with people at work and he has been a good resource since I pester him with questions every week, I have not met him in person but we talk on the phone a lot.

I also indicate other things as well on the lease such as weight limit, pet deposit (which was not collected from the tenant) and monthly pet rent (not collected because I specifically asked the tenant if she had any pets and the answer was no). 

If there is no online resource, you can go down to the tax assessment office in person.

The non-profit National Tax Lien Association is a solid resource for knowledge & networkingNTLA.org