Everything checks out except they have terrible credit.

I found a retired electrician who did not want to “work” anymore, but could be hired as a consultant to tell me what to do and check my work.

In my market, JADUs are regularly being removed when selling a property to achieve top price even though they can generate income.  

It's great to have you here.Here are some recommendations for you:Find and connect with other BP members that are in your area: http://www.biggerpockets.com/m...Set up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/a...Read Beginner’s Guide: http://www.biggerpockets.com/r...Check out BP Money Podcast: https://www.biggerpockets.com/..Wishing you the best!

A property's operating expenses are those that it incurs on a monthly or annual basis and are considered regular and continuing.

One way would be to reach out to your local real estate investment club or check with other investors in your area for recommendations.

Check out the Events at the top to find local and virtual meet ups.

@Khandbari Rai pros- you can make a  smaller  payment ( the Int ony  payment ) for  up to 10 yrs    ...cons - the rate for this program is slightly higher than regular amortizing loan ...if you make the min payment - your loan balance  will not move  down at all  over  10 yrs  -  the lender  uses the  full amortizing  payment for qualifying  ...at the end of 10 yrs - the lender will change the payment to a  fully amortizing payment for the  remaining balance over the  remainder of the loan term ( likely to be 20 yrs)

A regular mortgage for purchase then a creative loan for the reno?

Christopher,Check out the following property management software packages.