...if the vacancies are frequent or extended, it can be a big expense, so I analyze this thoroughly.As for house-hacking specific costs, there are things like furniture/appliances/decor for the common areas of the house, costs of screening applicants (like background checks), cost to advertise, the time and effort required to manage a house hack, etc.  ...although these expenses are worth consideration, they tend to be much smaller and almost inconsequential compared to the big capex expenses that can come with buying the wrong property (e.g.; you might spend a couple hundred bucks on tenant screening, but a new roof might cost $20k+).Back when I was house hacking regularly, one of the most significant "costs" was the cost of my time and effort to acquire tenants (which includes all the time and effort of posting ads, responding to inquiries, answering questions, doing viewings, screening applicants, managing tenants once they were in-place, etc.).

It’s always price or advertising/marketing.

Has anyone invested, and what is your opinion? I was thinking about it to fund larger investments STR's etc...  

While HMLs advertise Points & Interest rates, you'll see there are MANY more Fees associated with this type of loan product, in addition to a lien being placed on your property and a short timeline typically to operate within before they foreclose if you're not able to exit/repay the loan.

An alternative I’ve heard advertised on the rental income podcast is the guarantors…https://www.theguarantors.com/I only suggest them as I’ve heard them advertise where landlords are and haven’t heard of Rhino. 

Take care of anything that needs to be done to your condo while you're advertising the vacancy and showing the unit to prospective tenants.If you get a good, tidy tenant -- which you can verify if you have an opportunity to visit after the tenant has moved in -- you may be able to advertise the unit near the end of the tenant's term and get the tenant to show the unit.

It is good for people to know that MIS should not be used to save a failed 1031, because I was advertised by an Intermediary that MIS can.

So I used Postlets to advertise my rent house on Hotpads, etc.

I mention this because some instructors advertise that there's a market for this type of paper.

We are already working on the Maryland and DC contracts inserting the clauses in.The settlement says that coop commissions cant be advertised in the MLS, that's it.