This is along the lines of another 'ninja in training' idea, but I may have heard of someone being an 'administrative consultant' for another, not a PM.There may be a few distinct things one cannot do without being licensed.

If you are weary of the whole construction process (and not know how complex of a renovation you are looking for), your local architect will usually have construction administration service which basically is overseeing the construction process on your behalf to ensure you get the end result you wanted. 

Then to have clear title the probate process is going to have to start.Then Letters of Administration are going to have to be issued to the PR (Personal Representative).The Grant Deed will not change neither will the Tax Bill.

I set up a really simple wordpress website for myself that show the properties that I have, but then if someone wants to book, it directs them to Airbnb.

@Dillon BaerSome employers have 401K fund administrators that allow you to take a loan against your 401k.The IRS allows employers to offer a plan that allows employees to take the lessor of $50,000 or 1/2 the vested 401K balance.You should inquire from HR of your employer to see if they allow this.If they allow this - I would look to rolling over the 401K from your prior employer into your current employer's 401K plan.

One aspect I'm reading about is how notes are hard work, entail lots of phone calls, and feels like an being an administrative assistant, but it's unclear in what perspective that's painted.

@Karen Emery So far I've made 2 cheap wordpress websites for buyers and sellers and just done free postings on craigslist and FB groups, and some cold calling from driving for dollars.

They held semi-yearly dinner invested in Small Business Administration approved mortgage and loans.

For example, there are some administrative legal fees I paid early on (notably: Having a lawyer draft up the PSA, and setting up my LLC which holds the title).If I ever get audited, what will the be looking for?

Company/employer contributions are made when taxes and books are confirmed to be accurate and total maximum amounts are verified by CPA and administrator.