Hello all Well after a year of trying to get into the real estate business we finally have our very 1st two duplexes under contract. 

It opened me to more opportunities and have had a good start with it, sure, it was a little bumpy ride, but it is well worth the experience and hopefully I will be an investor in 10-15 years, I am just waiting for the next market dip.Being with BP gave me a lot of referrals, and been missing my rehab numbers bid, but I finally got to a point where I am comfortable with my numbers and lowered the expectations to make room for everyone to be happy.

Is it as simple as adding a clause in the A to B contract allowing me, say 24 hours or so before the sale is final to make sure the B to C transaction goes through?

If the sale is already final, than no you do not need to pay it

I have had several showings but I am not yet under contract and I do not expect to finalize the sale in 2015.How/when do I deduct my interest paid on the heloc used to purchase the flip?

If flying over is not an option for you,, I think you have no choice but to wait the 6 months out and get yourself ready with all the peripherals - solidify your plan of action and market,  reach out to potential partners and suppliers, research financing options, insurance, management etc etc- so when you do finally get there- you can hit the ground running.The other option that I am now  getting more involved in slowly - is online  crowdfunding - A lot less hands on- but far more doable long distance.All the best

Finally, can I charge myself any custodial fees on the solo k?

There is also the option of not doing anything, which has been my default “do nothing” strategy for the past several years, but family needs have finally pushed it to the breaking point.

I've been pulling averages from craigslist and rentometer for the areas I am looking at, and it looks like renovated 3/1's or 3/1.5's provide the best opportunity for higher rents without much additional acquisition costs. 

Your RE acquisition should always be based on the as-is value of the property at the time you intend to acquire it - any costs for rehab/repairs/remodel.