I just want to know what to do for the next year and how to best prepare for taxes.

I also qualified for a down payment assistance program.

Preparation sure beats desperation.

Be prepared to have the inspector out a few times unless you are super experienced. 

Yes , we do a mortgage and promissory note for each deal to protect them- but the attorney prepares that included in her closing cost. 

I'm a new Real Estate Investor who is looking for a good excel program to keep track of all my business expenses.

Prepare an answer ahead of time if he asks why, but don't volunteer it.

New homes are much more attractive because the financing is better for buyers (and yourself if you dont have the option - the CASH program from Clayton is an effective way of doing this).

There are also a number of mentoring programs that can teach you how to get into multi-family. 

Be prepared for several "if" statements: if you have a 401k, and if you transfer it over to your new employer (assuming they have a 401k plan as well), and if their 401k plan allows for loans, then you can take up to 50% of your vested balance or $50k (whichever is the smaller amount) as a loan from the 401k.