I recently did a yellow letter campaign and would like to follow up.  If I have the homeowners' phone numbers, am I allowed to cold text them.  Simply asking if they received my letter and were interested in selling their home?  I would appreciate any guidance in this.  I don't want to be doing anything against regulations.  Also, does anyone have a better follow up the process to try to capture off-market sellers?

@Nathan R.

There is no law against contacting a homeowner to buy their property if you are being honest. The problem is when investors misrepresent themselves and say they will buy in cash, quickly, then end up actually doing an assignment to another investor when they actually never had the ability to close at all in the first place.

You should be using a CRM to adequately plan your follow-up. Unless you are contacting very few properties, then you can just use google sheets to track your followup.