Given the uncertain neighborhood prospects, I'm torn between enduring potential long-term losses or cutting them now.

Prospecting and overcoming landlord's objections to STR arbitrage.   

Have any properties or prospective sellers there? 

Also, he screens prospects, so not everyone can join.

2) How do we prospect for another local PM company and offer to buy them out?

Most homebuyers will have a buyers agent relationship also at least qualified and ready prospects will.  

I would say my main concern with Invelo is that I believe once I upgrade to the paid plan that I can only add tags to the total prospect where in ReiSift I have the abiltiy to tag prospect phone #'s (wrong # tags) and other individual stats per record. 

Do you think this -- http://www.thecha.org/landlords/ -- is the best place to start for a prospective first-timer considering going this route?

My concern lies in how can I mention this duplex or attached unit in a rental post, without making it less appealing to prospective tenants?  

Sort of like your quarterback and key player, in my opinion.We spent about 6 months interviewing PMs, calling as prospect landlord, calling as prospect tenants.