Ask how they intend to pay for a year or two of rent.I ask for a statement of assets and discuss any red flags or ambiguities with them.

Also, do you have a CPA?

As you read these books, watch the BiggerPockets podcasts.

I actually help run the sales team at Backflip!

Also have family in the biz there. 

I suspect they are using someone else's identity or hiding something negative from their landlord.It is not uncommon for people to have good credit but still have an eviction or other problems with a previous landlord.

Last time I used them it was quick responses and communication and now I cannot get in touch with them is anyone else having this experience?

I can recommend you to my guy, he's great!

I think LLCs are over rated unless you have to hold the property in one for financing like most DSCR lenders will require.

@Jackie Liu I have a table in my lease that lists all the utilities and then they are marked as to if the tenant pays them or the landlord pays them.