I am wondering if you got this question answered, my wife and I are looking at a 19 bed motel in our area, we are looking for help structuring the deal, calculating expenses and potential creative finance options. 

Have to retrofit things, and abide by (or remedy) the structural decisions made over a hundred years ago.  

From the single-member LLC, i pay myself 100k last year to max out on the solo 401k contribution, while still having a W-2 as an engineer as my main job.my main job pays me 170k/year (Google)my single-member LLC rental pays me 100k/year (as S-corp structure)my question is regards to the payroll tax, i know I already max-ed out on the payroll tax on the employee side, any additional payroll side as employee will be refunded in my tax return, how about the employer side.

Could anyone recommend a company who structure trust for seller financing deals?

You can go through the renovation process and keep the rental.

But since this is mixed use and a single structure, they'll default to other ways to demonstrate correct intent (rental income,  depreciation, length of hold, etc.) 

I ended up loving it so much that I moved from submarine engineering to residential structural engineering and real estate brokering.

I just bought my first investment property last year and am going through the process of transferring ownership to the LLC we formulated.

I've been to one that Nick Tang's host (REIA), but I wasn't a big fan of how it is structured.

I am very much a hand holder with new investors and will walk you through the entire process so that you understand it all.