Once you get some seasoning (experience, not refi's), you form an LLC and operate your portfolio as a business entity.

Title company is asking the EIN/TIN of the entity.

There may be some reasons why it's not and only a CPA, EA or Tax Attorney that understands your full picture will be able to offer good advice on that.The Mgmt company will be it's own complete and separate entity with no ownership over any of the other LLCs.You may choose to have an umbrella LLC over the LLCs that own the property, but that's not really necessary.Set up your bookkeeping for the mgmt company. 

Don't commingle between your different entities.

Legal entities such as LLC's are not eligible for conforming loans, such as a conventional loan. 

Yes my entities and home are all owned by the trust.

So, you need to figure out how the two tax regimes line up before knowing the optimal set up or entity to use.3.

Otherwise, I spend a few hours on bookkeeping each week, but that includes all my properties and business entities. 

Their service, just like any other, is not without drawbacks. (1) I'm not a big fan of their rent collection b/c they make you deposit it into their account and I'm not overly comfortable with an unregulated entity having any say over my money. 

@Justin Brin - well yes TX property taxes are always high but the run up of sales over the last few years have given taxing entities the opportunity to re-assess even more.