@Dan Keefe I usually use zillow, rentomete, and BP in order to get a ballpark for rents.

By scrolling down, I can usually find the property taxes for previous years, giving me a rough estimate of those costs.

The best cases have done 20-30 deals or have gone from $3M deals to $30M deals; usually over a 6-8 year time span. 

I've managed in some of the most hardcore areas and because of this, usually only the bad tenants are there because they can't get accepted anywhere else.

A runny toilet will usually add about $200/ month so it isn't likely a toilet and the chances of having 5 at the same time is slim.

I usually suck up all the plumbing issues with LTR because I know it will just waste my time and of course plumbing is the most expensive repair every single time. 

As @Jay Hinrichssaid, the underwriters are usually more confused and take a longer time, but the loan officer should at least be able to get you a quote for 30 fixed on your primary.

Everything in your without permit benefits are either lazy, cheap, or cheating which doesn't usually go over well later.

I usually recommend house hacking a 4 plex.

For long-term strategies, a cash-out refinance is usually more advantageous, as it preserves ownership and offers fixed terms.To proceed, start with a professional appraisal to confirm the home’s value, compare refinance terms with traditional lenders, and carefully scrutinize shared-equity program terms to ensure they align with your financial goals.