FYI - not legal advice.If it's not a formal assumption and it's a straight sub-to, typically the seller remain personally liable for the debt if the investor defaults.Essentially, what can the investor do better than the seller after refinancing the property? 

I used to have CoStar with my previous company, but no longer have access. 

Another option would be a co-living arrangement utilizing a company like PadSplit.

This is dependent on your personal situation and strategy.

Are you able to go there in person to build your network? 

A lot of investors are jumping to secondary lines of insurance coverage and the problem with those is that the companies are based in the Cayman Islands or the Bahamas a lot of the time, and it is suspect that they would actually pay out if the need arose unfortunately.   

I've looked up the company and found a lot of compliance.

I'm willing to help this person in any way I can.

However, bc of the losses, mortgage companies don't want to touch me when I am fully able to pay the mortgage.

I sold my company two years ago and I'm looking for investment opportunities in the real estate space, specifically single-family houses.