When you write a lease "for a judge," you are essentially protecting yourself against the legal principle of contra proferentem.

The ATG specifically mandates engineering principles for accurate and defensible studies.

If you never plan on having many properties, then a simple spreadsheet will suffice (KISS principle) Happy Investing!

These exact same principles (fundamentals really) are applicable in my market too, and probably most if not all markets. 

A few principles that have consistently worked for me:1.

I've learned of several other LPs in the same boat through the Kelley Clarke Law firm that is representing several of us and through the Reddit forum linked below.https://www.reddit.com/r/investing/comments/1hq19lu/wavemark...A principle at the firm suspects they are under investigation by the SEC. 

It's based on commercial multifamily underwriting and modeling, but the same concepts, principles, and functions apply to small multifamily and single-family investing.

Most of the topics covered in the book are similar to the principles that I have already learned listening to Bigger Pockets and reading other books. 

Or if you cash out refinance your condo, you are essentially moving that debt to a 30 year fixed option which I think is your best move.

Quote from @Christian Welch: This is something I always stress and make very clear:STR investing is not just buying a property and listing it on a platform for rent.A short-term rental is essentially a hospitality asset.It’s not a hotel or a motel, but it absolutely falls under the same scope — operating a business that provides both a service and an experience to the client.Like most hospitality assets, the majority of your costs come from:• Turnover and cleaning/ Preparing the unit for the next guests                                                                                                                                           • Restocking paper towels, toilet paper, soaps, towels, linens/ Stocking up all these supplies upfront• Ongoing wear on mechanical systems — HVAC, plumbing, appliances, water heaters, etc.This is why many STR owners choose to hire specialized STR property managers — firms that already have the systems, staff, and client base to book properties months in advance.