For irregular items or situations such as if you are renting a room instead of the whole property, or you are including furniture or you have special restrictions, just make sure your lease has an open text box (or you add one) so that you can type in exactly what those special situations are; EX: Tenant has access to and rents from Landlord Rm #: XX ONLY; common area may be used by Tenant but per Landlord's sole discretion. --- Alternatively, you may also include an attachment/amendment rider to the lease for these items. 

It may sound nice to pay a 5% management fee but the extra fees can add up to be more than the other company that charges 10% with no add-on fees.

After that, add on 5% more.

At your added savings rate of $900 additional per month plus cash flow from the investment, you could add one property per year easily. 

If you need a preapproval, my network of lenders can have that done in under an hour and then add on my 5-10 minutes.

Add one or two SFHs with a good property manager and your easily over $100K per year with very little risk and no work.

Some lenders add on additional points if your loan amount is too low ... basically you pay some interest up front in exchange for a lower interest rate over the life of your loan. 

@Zachary Inman this is good stuff.If I could add one thing it would be....#11 Know your numbers and set goals.

Matt,Others gave very good items to consider, but I'd like to add one more point:You mentioned you're young, and starting out.

I can definitely see how an extra bedroom would add on significant value.