To Sellers out there, you can negotiate a percentage of those un-realized rentals for yourself to keep... after all you are the one who got the rental in the first place from your great reviews and reputation that you developed.

That is worst case scenario and most reputable HML don't want the property back. 

Avoid building a reputation as the guy who never closes. 

Right now though, if I'm able to work with investors (friends and family who know me personally and trust me) who are comfortable with unsecured loan then I will definitely use it as I start building a real estate reputation and create a track record of putting deals together.

I'd say focus on people first and foremost because if you go with a reputable team with a good/long track record, you know the market supports their business, so its a little bit of built-in market vetting (though certainly not the limit of the research to be done). 

While there are some reputable marketers out there, it does mean that you need to do one more level of vetting - vetting the marketer (the people you buy through) AND vetting the turnkey company (the people you actually buy from and work with long-term).Generally speaking (and yes I am biased here) I recommend working with the turnkey provider directly if at all possible.

Nearby retail development, especially big employers like hospitals and manufacturers and does the area retail commercial development fit your intention like for low income, middle class, or high class and does it fit your plans. 

I would recommend contacting a few companies, then go with someone reputable that has cost in the median range.

@Angel Bowers I haven't owned there but it does have quite a reputation.  

Hello BP’ers, Is there any major items to look out for when completing a mobile/manufactured vs. multi/SFH rehab?