Sold my rental but tax preparer retired. Not sure how to proceed. Any tips?

[Ambush]

Hello and thx for reading. Thanks in large part to MMM and you lovely people, I'm early retired, sold my only rental property 3 bedroom in August after 10 years with a substantial six figure gain.  I've read extensively but this appears to be too deep for me to become proficient for this one time tax return. 

Tips on who/what/where for tax preparation? Cost not important but I am extremely concerned about sharing all my financial info so here are my initial thoughts on how to proceed:

HR Block in person
Using an online service with a brand name tax prepare assistant.
Local tax preparer - this one makes me nervous.
Muddling through with software on my own.

Any tips on where to go or on things to look for when doing this. 

[walkwalkwalk]

Did someone buy the retiring tax preparer's clients? Maybe see if he can refer you to anyone. Does that make you more comfortable about using a tax preparer?

I would NOT use H&R Block. They are earned income credit tax preparers.

[Ambush]

Thanks they did not have any recommendations except that he was hesitant about using HR Block.