is there any particular formula to determine appreciation in any market?

Once you know those two items you can determine how much you can pay for it.

The IRS requires that I claim the entire years worth of rent in the year it was received. 

The exact amount of your lien is then determined by the Execution (example I asked for a $50k pre-judgment attachment and in the end was awarded $68.567.00.

I want to take some cash and start investing in multifamily properties.It's a 2/2 Condo in a highly desirable location.Purchase Price: $97kOwe: $68kCash Flow (after debt service): +- $250/monthMarket Value - currently selling for +-$150kThe HOA is $450 a month, which is included in the rent price of $1550 a month, so it's not that big of a deal.So I'm trying to determine if it's more beneficial to sell it, take the cash and look for a duplex, or get a 2nd mortgage and take some cash out, since I'm so far in the green.Thank you in advance for all your input!

My understanding is that you do not need to do a separate tax return for each LLC, assuming they are single member LLCs then I believe the IRS disregards the entity / the income and deductions just flow through to your tax return.

Over the past few years I have been observing the property management companies in our area (Vancouver) to determine who is likely to be a good fit for our properties and reflects our preferred management style.Interestingly enough, I've learned the most about property management companies from friends and colleagues of mine who have been tenants.

Our end goal is to determine the ARV and the time it would take to sell once we are finished with the rehab. 

There is not enough information to determine if this is a good deal or not.The 1 or 2% guideline is there to let you know to dig deeper.  

Frank Houng You can't determine if it is a good deal or not based on the information you gave.