He sold it for $350K, a flipper bought it, promptly put it on the market and asked for $399K.

Your question prompted me to investigate further these "representatives'.

The buyer promptly disappeared, leaving us with a 13K code enforcement lien, as well as a house full of junk.

I know there are some members on BO whom are paid by prompting those companies, but please only respond, if you have genuine personal experience both positive or negative.

They are very prompt in responding to any PM questions I have. 

Thank you all so very much for the prompt attention and kind assistance.

I think having a discussion with the tenets from your perspective (based on you fixing the problems promptly) and theirs. 

The local pro pm I use as my role model says about $50 is the most you can raise rent each year and not ruffle feathers enough to prompt looking around.

I wIll expect rent paid promptly on the first or a late fee will be incurred .

This note is guaranteed by XXXXXXXX Group.The Borrower must promptly inform the Lender of any change in name or address.If the Lender prevails in a lawsuit to collect on this note, Borrower will pay Lender’s court costs,collection agency costs, and attorney’s fees in an amount the court finds to be reasonable.This note was executed on this 11 day of OCT 2017 and I acknowledge receipt of a completedcopy of this instrument.