Just make sure with your broker you know whether the umbrella is in addition to the underlying limit or its limit is less the underlying limit.  

My credit is great and I have additional w2 income as well.

If the appraiser used different comps have your realtor submit any additional comps and include a list of repairs/upgrades that you made to the property.Good luck!

Then on top of that they charge a 7% Commission (that would equate to additional $26,250).

Additionally, since I was going in all-cash, I could offer seller financing to a potential buyer if HOA assessment delinquencies presented a problem with bank financing.

I'd like to collect rent on the 1st and then pay the mortgage on the 7th to prevent the lag of pulling money out of my property account just to put it back in within a day or two, but I want to make sure that my interest won't go up in the 6 additional days if I pay it on the 7th.Can someone let me know if that makes sense or if I'm misunderstanding how mortgage interest is calculated?

I purchased the land with the intentions of building additional duplexes in the future.

So I suppose then the best way to do this is to just keep the asset in a Solo 401k and get my portfolio lender to agree to a non-recourse loan, keeping the asset and profits in the retirement account without incurring additional tax burden. 

I have a solid rental portfolio of houses here in Austin, but the cashflow is minimal compared to what I can get in multi-family or in the mid west. additionally, I'm looking at purchasing non-performing notes and turning any of the foreclosed properties into rentals.Are there any strategies for selling off the houses, either in bulk or individually, to minimize the tax burden for when I reuse that capital to purchase non-performing notes?

This allows you to buy the house with the first draw, then take out additional draws to finish the repairs.