I really do it for the lend-ability of a W-2 job (I usually buy with HM and refinance) and the educational aspect. 

You have the ability to increase the value of a larger asset that will generate more revenue and combat vacancy much better than a SFR.

any lenders here or realtors that have used any Does it harm or hinder your portfolio or ability to aquire more properties in the long run?

Bad news is that the ability to finance (with rates that my reach 8% by early next year and that is residential owner-occupied rates most likely) will now become a major consideration. 

I would personally not do a deal with anyone who has less than 1B in AUM unless I knew them personally, had the ability to take over the GP, and there was an big split for me coming in and giving a newbie a chance (90/10 LP GP split for example).c) Any other things to be careful about investing with a first time syndicateGood luck...

Just doesn't fit with my plans right now, nor my outlook on the market, nor my ability to execute a 1031 exchange.Hope that addresses the broader context of your question.

One can never get to journey, as we know, without the ability to see 4, 7, 10 steps ahead.

But when the time comes for me to refinance in a few years he will get hit with a bill - which is obviously the whole reason seller financing would appeal to him in the first place. 

So you're asking for ability to have follow up sequences run for multiple contacts associated with a given lead? 

If a bill is abnormally high and you should receipt from a licensed plumber that work was performed to fix the issue a lot of times the municipality will forgive the high bill.