The appraisal for the house came in at $335 when we bought it, and we conducted what we thought, was an extensive inspection (including a separate termite inspection).

Collect the names/numbers of the companies they send out and keep it for your own future reference.

I want you get them paid off asap so i can collect max cash flow sooner.  

Someone that is going to make the whole process for her/him to collect her/his commision check EASY.

At the same time, as a flipper, what if the 50% isn't enough on an extensive flip (this would be rather rare I would hope).

If the number the tenant comes back with is acceptable to you send them a written notice that you've agreed to their terms as a one time extension.

Get the advise of an attorney on how to collect on it.

The biggest things that will turn me away are an extensively bad roof with leaks, an extensively bad subfloor with holes all over, multiple plumbing or electrical problems, and bent framing from settling foundation.

The RV's can, and do move and the labor to fill the lots, collect daily funds etc drives your RV management costs way up.

But I'll do the best I can to help from reading what you posted based on price it seems good but there's still a lot of unknowns, since your house hacking and it's a duplex this might be common sense but please check if you ever decide to sell the property would it be sold as one collective property for 150k or separate I mention this because it seems like you'll be using a hard money lender.Also when it comes to rehab if you don't feel comfortable estimating the rehab do what I have done contact several rehabbers and show them the property and get a quote estimate that way.Along with this to eliminate any doubt the most important information (depending on your exit strategy) is the ARV you generally get this information from realtors to see what similar properties have sold and how long does a similar property take to sell.