If you have hired a specialist to perform a cost segregation study of your real estate property, they will likely use one of the six most common methodologies recognized by the IRS.

Lack of provisions for dispute resolution is a common oversight.

Tenant must prove the following:1) they are unemployed2) if unemployed, they must show their unemployment insurance statements and small business protection statements (because a lot of them are getting more money in unemployment and some also get the small business protection paychecks from their employers)3) if so, they must pay 50% in rent each month or should get kicked out within a month; heck 50% of unemployment check should go directly to the landlord or mortgage company so don't let the tenant be the one to decide if they want to pay out or not4) but with the money, they should voluntarily move into a smaller, cheaper part of town instead of staying put (common sense is that when you lose your job, you send out resumes looking for another job while collecting unemployment and also looking to move and downsize to a smaller, cheaper place); you don't stay put and be a squatter5) they must show their bank statements (checking, savings, retirement accounts, etc.); any money they have in there must go towards paying 50% of rent as well6) if they are short on all the above, they must move in with family / relative / brother / sister / parent, etc.7) the only situation when they have a right to be a squatter is when they can prove that they will be homeless if evicted and have no one to turn to and no money in the bank (but whoever gets to this situation is a lousy manager of money and don't know how to live within their means while employed)

Just use common sense.When you get a request that asks if it is available when a quick look at the calendar or the inquiry show it is available then you should be on the look out.

So the major issues in a house are a foundation issue or a structural issue, the next tier down would be a mechanical issue like Electrical, Plumbing, HVAC, then roof - which isn;t an issue a new roof is very common in a fix n flip, and then the outside facade: Brick repair, driveway repair, brick pointing. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

They are far more common now and harder to find models without but:1) these add cost to the purchase price2) they don't bring a lot of value3) they can leak or detach and damage the propertyI own around 50 doors and I cap off the line at the wall or in the basement with a valve and a cap so the potential for leaks is 0.00001% :-) 

Common misconception that the fed funds controls mortgage rates but that is not how it works. 

There's a common belief that your tax person should also be an investor themselves.

That's just common sense.