I appreciate the community and look forward to being a contributing member.

It's partially the reason I decided to finally hop on the forums and start contributing so thank you sir!

I hope to get the opportunity to learn from all of you as well as make contributions to the forum. 

Did everyone contribute capital in the beginning and this was his percentage of contribution?

My 'roll over' amounts were MUCH larger than my contributions since I switched over, as is often the case I think.

Adrian,If your 401k contains pre-tax contributions you can only roll it over into Traditional IRA.

I was thinking I could consider the savings in down payment as his contribution to the deal, and allocate % ownership accordingly.  

Step 1 - Max contributions for company matching 401k, usually around 4-6% or ~$4-6000 in your case.Step 2 - Max contributions to HSA in 2018 it is $6900 I believe ( this is the only money you will save that goes in pretax and goes out pretax when spent on healthcare-related items. )Step 3 - Save another $10-20k/year and live like you are broke.At 20 years old making $100k, you should be saving upwards of 60% or more of your income.

Take into account RE taxes, Mortgage interest, charitable donations, large medical expenses, ect...compare it against 2017's total.If you took a look against the rental but used the proceeds for personal use- IE to pay off your personal residence the interest would not be deductible as a business expense. 

This means that you can't make any contributions to the IRA.Since it is a beneficiary IRA, I will have to take out a minimum distribution per IRA rules as a non spousal IRA beneficiary by the end of the year 2018.