Bigger Pockets is a great place to find a real estate tax accountant.A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

yes create the addendum but realize the tenant who has been paying could ask to be reimbursed for these costs as well as not accept the addendum.

From a scaling standpoint, for at least whoever is doing the books, Buildium is far behind in this and is adding time and/or cost for these added tasks that need to be done.

The savings from either will be many times the cost of the lawyer.  

Or a personal loan if interest rates aren't cost prohibitive?

Also, what are some other low cost amenities that I can add to my STR that will yield a higher ROI?

@Earl White rent control and relocation costs equals NOT landlord friendly in my opinion.

Your property is fairly destruction proof, costs near nothing to maintain, yet you can charge above market rents.If your property is nicer (class B) where the carpet alone might be $6k or more to replace when the tenant spills hair dye everywhere, you won't be as happy as in the situation above.  

Replacing one bad fixture between material and labor can end up being 3X the cost of buying the better quality fixture in the first place.  

In US tax law, the depreciable lifespan of an asset is defined by its MACRS classification which stands for “Modified Accelerated Cost Recovery System.”Under MACRS, depreciable assets are assigned to different classes, with each class having a specific recovery period.