You might consider hard money for the initial purchase or going with a DSCR type lender if you find something that is more turnkey.Hey!

Are you purchasing as investment? 

I want to purchase my second property within 4-6 months of moving into my multifamily house hack, but looking for a guidance on the strategy to do so.

Just keep a good record of your SREO and hang onto the HUDs that you've had from both your purchase and your sales.

I purchased a fix and flip that got complicated when we found one of the basement walls was bowing in.

I've got about $525K in equity in the property, but lenders have told me that I cannot get a HELOC to access that equity for additional purchases because the duplex was financed as an investment - they have said TX law dictates that HELOC can only be used on primary residences.

That was an excellent non-answer to my question, Skyler. hihi :)No they are not all the same. some are only interested in dealing with conventional purchases other are as you say better at handling assignments or double closes, some are commercial specialty, etc....A investor friendly one would be, at least from my point of view, one that understands there may need to be some last minute wheeling, dealing, and adjustment made to close a deal, understand what needs to be done and do not freak out about creative deals.Maybe my understanding or thoughts are wrong but that's what I meant by investor friendlyregards :) 

You can purchase a primary home with seller financing, then rent out the spare rooms to generate income.

Purchase price: $490,000 This is a unique opportunity to participate as a investor in a single family residence valued at $3M and higher.

Now days you don't buy a deal you make the deal either with how you operate the property, how you finance the property, or how you purchase the property.