I know several guys in your area that I can point you to if you come up with something legitimate! 

Are they a legitimate company. 

Doug, to qualify for a Solo 401k you need to have a legitimate self-employment activity or small business without full time employees.

However, the self-employment activity must be legitimate, and the intention to make contributions from that self-employment income should be present as well.

An educated buyer doesn't need them, and an uneducated buyer is going to misinterpret all the write offs people use against their properties like mileage, cell phones or whatever other business expenses whether legitimate or not people assign to their business.

You'll be more likely to get a legitimate response (and possibly multiple, sound opinions).  

Hello Matthew,I don't know of any legitimate platforms that would do this.

You can search tax records for things like non-owner occupied homes, or homes that should have lots of equity, etc for free... the the other leads you are talking about comes at a premium (above the monthly membership) if I remember correctly.They are a legitimate service.

In CA if you do the tax sale approach it is recommended by the tax collectors- treasurers of any county that you do not do any rehab or sell the property for 1 years time frame as there is a litigation period allowed to the property owners (estate owners included), to contest in court if there was an erroneous sale or a legitimate reason it should not have been sold. 

I told them legitimate repairs are never an issue and safety a priority but  that clear communication is key and if there are ever any issues in future please be specific so I can address them appropriately.