There are numerous numbers you can look at but it really depends on what your investing goals are for. 

In fact, numerous Tax Court cases have found in favor of the IRS when a taxpayer can’t document enough hours spent providing personal services to their rental real estate activities.Generally, material participation is determined separately for each rental property.

Sometimes it's ambiguous, but even then, why should I bother with the company that has numerous unresolved lawsuits, versus another company that is virtually the same but has none.

A contract is legally binding when it has the following elements:1.Consideration - An exchange of value between the parties.

I did my first flip in 2002 and have done numerous since.

Not easy to answer.In our opinion, the most important element in determining a Property Class is the target tenant pool.Just think about it... what do you think will happen to a Class A property is you rent it to a Class D tenant?

So, I would be double checking with city even if it means numerous phone calls!

Is this a residential wood frame building with traditional single or double hung windows or is this a condo building with aluminum windowsI assume you already confirmed the windows are a common element

Flesh out what you are trying to accomplish and mention salient elements that would support your "ask".Does that make sense?

As with any other large renovation there were numerous challenges and lessons.