@Albert Gallucci as many have pointed out, in the commercial space of 100+ apartment buildings and offices, property classes have some pretty decent industry standards.We started applying these to 1-4 unit properties around 10 years ago, which you can verify on our blogs, because we saw too many newbie investors not properly taking into account things like, neighborhood status, tenant pool, property condition, etc.Unfortunately, there's no industry standard for this, but you can use some basic logic to think your way through your own Classifications.

How big is the space they are renting? 

I think alleging fake it to you make it just hugely rampant in the MF syndication space..

Hey Isadore, Send the tenant a notice of non-payment and have the tenant go down to their local public housing authority office, HRA, or Department of Social Service office and provide them with the notice.

Your best bet is to ask for referrals from professionals in the space: realtors, other investors, this forum, FB groups, etc.

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

That will allow you to build the additional legal space further amplifying the value of the proprety (more HELOC money). 

I have solid property management in place with my portfolio so the time commitment is minimal but it still takes up space in my brain.

I found what seemed to be a great property with a house for an STR and other space that I could expand for camping/RV sites and a barn that could be converted into a venue for events. 

A few public projects have cleaned this up but the area has never prospered since.