Not sure why that happen, however the best way to screen a potential tenant is to see how they have performed in the past. 

What is your availability for a phone call?

Networking with local investors through BiggerPockets, Facebook, and meetups can help you navigate the market, while avoiding common mistakes like underestimating expenses, poor tenant screening, and hiring the wrong property manager.Good luck!

It’s essential to screen tenants carefully to minimize vacancies and ensure reliable rent payments.4.

Few of the ones I’ve looked at or did the phone calls with were new wealth advisers club, rei accelerator, pace morby etc

It does many things to help you with Tenant placement like marketing, application collection and screening. 

HI @Amir PortalWe connected the other day on bigger pockets and we spoke on the phone.

It’s basically spam email for phone calls.

. -- Thus, you can expect to get Class C or D tenants, which have a 15-25% probability of defaulting on their lease payments.2) If your PMC is lowering FICO to 550, what are they doing to improve their screening in other areas?

GC in my area cost 10% of the total and I would say that is worth it for what they provide, but if you have the knowledge and willingness to be on the phone with subs (and spend a lot of time on site) you could save that by DIYing it.