Should I expect a huge assessment fee?

If there's already been a special assessment to pay the judgement then maybe the price reflects that.

Currently my portfolio is a single family residence in Denver CO and I’m planning on using a HELOC against it as a bridge loan for some of the downpayment and renovation costs.I’ve been trying to build some models on Google sheets for deal analysis to assess deal validity and candidly I think it can be done better.  

They tax based on a percentage called the assessment ratio.Example: Market Value: $300,000. 

We got a total of $503,894 knocked off of the assessed value of all our properties.

Have inspector looks at the deal (IE - physical conditional assessment / PCNA) to identify any potential physical issues.

I’ve walked hundreds of properties with investors and it always comes back to how well we assessed it up front.Also just to add some extra value, if you’re serious about flipping, going to meetups is one of the best ways to level up.

If it's assessed at 250k and you buy it for 700k odds are the property taxes will go up to or near the purchase price.

I've also found it incredibly helpful to involve third-party vendors to assess any damage.

Are there any classes anywhere that will help me to assess a budget or to know what a place needs at a glance?